How to Unroot/Unbrick your Galaxy S2 i9100! [ICS]

For those of you who want to unroot your Galaxy S2 i9100 to the latest ICS “official” stock ROM, you can do this easily using ODIN. (or Heimdall for Mac/Linux).

Step 1. Put your Galaxy S2 i9100 into download mode by holding down Volume Down, Center button, and Power button together for about 10 seconds until your phone reboots and you see the warning sign.  Press Volume Up button to enter download mode.

Step 2. Connect a micro-USB cable to your Galaxy S2 from your computer.

Step 3. Download stock ICS ROM and unzip(Don’t have unzipping program? Download and install 7Zip.).

Download stock ICS ROM

Step 4. Download ODIN, unzip(Don’t have unzipping program? Download and install 7Zip.), and run the program.

Download ODIN

Step 5. When ODIN runs, you should see a yellow highlight with a COM appearing.  If you don’t see it, download Samsung Kies and install.  Then plug-out and plug in your micro-USB cable to your phone, you should see it now.

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  • Najwan

    Hi,

    I just made the steps but when I pushed START it said nothing, and after I restarted the phone it doesn’t show the logo of the phone, but it shows a picture of PC and Phone with Triangle in the middle between them, it doesn’t go even to the downloading mode now.

    Did I lost my phone?

    PLZ HELPPPP!

    • fiifi

      i have the same problem.have you been able to fix your phone?and how did you do it if it was possible

      • Jacky Chu

        I have the same problems too! Admin, please help!!

        • ruben

          same problem here…please help (desperate)

          • admin

            That’s the same mode as download mode, just run ODIN in that mode.

            • Nishit

              Max, I have the same problem on my phone. I did try to run ODIN on the mode mentioned by Najwan. But the issue I now have is that whenever I connect the phone to my pc the pic of phone and pc with triangle in between comes on and goes off continuously. While the pic stays there when it’s connected to an ac charger.
              What can I do here?

              • Max

                Just run ODIN again.

                • Ben

                  Hi Max, I have the same problem but not there is nothing at the ID:COM no yellow light or anything. its just stuck at the screen, is there anything else that I can do? Please help!

                  • Ben

                    this is the error that I am getting.
                    Added!!
                    Enter CS for MD5..
                    Check MD5.. Do not unplug the cable..
                    Please wait..
                    I9100XXLPQ_I9100OXALPQ_I9100XXLPQ_HOME.tar.md5 is valid.
                    Checking MD5 finished Sucessfully..
                    Leave CS..
                    Odin v.3 engine (ID:3)..
                    File analysis..
                    SetupConnection..
                    Initialzation..
                    Get PIT for mapping..
                    Firmware update start..
                    boot.bin
                    NAND Write Start!!

                    Complete(Write) operation failed.
                    All threads completed. (succeed 0 / failed 1)

                    • Max

                      try on another USB port.

                    • djnr

                      Added!!
                      Enter CS for MD5..
                      Check MD5.. Do not unplug the cable..
                      Please wait..
                      I9100XWLPX_I9100XXLQ6_I9100NEELP5_HOME.tar.md5 is valid.
                      Checking MD5 finished Sucessfully..
                      Leave CS..
                      Odin v.3 engine (ID:20)..
                      File analysis..
                      SetupConnection..
                      Can’t open the serial(COM) port.
                      Added!!
                      All threads completed. (succeed 0 / failed 1)

    • Abuuski

      hey
      i did everything right but the after the reboot i cant get inside my phone .
      please help

  • mil

    i done all that and it worked, but i want to root it again and use wanamlite rom. when i try to root again using the updated method, it gives me error that superuser could not be installed.
    how can i root it again?
    thanks

  • tobydarklord

    hey man … plz can u do a vid on how to root this version … as i cant root it … :( …… thanks in advance need help lol

  • law

    HI!

    I tried to flash my S2, but a I got a big red Fail. I downloaded two times this mda5. I followed exactly what you said in you video, but no luck.

    What should I do?

  • Yudhish Khatri

    Hi
    i really need your help!!! PLEASE HELP me
    I unrooted my phone n now all it shows is the start screen where it shows
    SAMSUNG GALAXY SII GT-I9100 please help with this.
    what should i do

    • Yudhish Khatri

      And one more thing odin also told me it was a pass so i dont knw what could have happened or gone wrong whn i did exactly what you did and it went exactly as you showed it except that it doesnt fully boot. just goes to that screen and doesnt go further. PLEASE help me

      • law

        got the same problem.

        search for your official stock kernel on samfirmware and flash it through odin. DON’T use any repartition option or pit file.

      • F.K. Morshed

        Same problem here. Why doesn’t the Admin replying !!!!!

        • Archit

          Same problem admin.
          Please reply soon !!

  • Barn

    Does it work with unrooted GS2

  • Barn

    Hi rooted my GS2 then I decided that I did not want it anymore and then unrooted it but Kies would not recognise it for firmware updates. So wondering would this work with unrooted GS2?

  • Yemi

    I think I am in trouble. I followed all the step and got the pass on the odin program however my phone has refused to restart. It just shows me the name of the phone (that normally show at start up) and then it shuts down and tries to restart and again and again. I can’t even go to recovery or download mode again. Please help me. I paid crazy money for this phone

    • dave

      u need to buy a usb jig of amazon its gone into a boot loop when u buy the usb jig it will put it into downlaod mode for you

  • Henry

    Hello Max! I have installed this on my Galaxy S2 I9100 on top of Resurrection Remix 9.6. The problem is now that my screen gets stuck in 3:50 forever! I’ve left it for 2 hours to see if it would continue and it doesn’t. Can anyone help me please! I’ve tried this process three times and it still does not work. Please, I really need help!

    • m3h

      Happened to me as well. I went into recovery mode (volup-home-power), did a factory reset and rebooted. It worked for me.

      • Benny

        Hi, I had the same problem but going into recovery and doing a factory reset solved this for me too :)

  • Jacky Chu

    Hi mate,

    I stuck on Odin

    Enter CS for MD5..
    Check MD5.. Do not unplug the cable..
    Please wait..
    I9100XXLPQ_I9100OXALPQ_I9100XXLPQ_HOME.tar.md5 is valid.
    Checking MD5 finished Sucessfully..
    Leave CS..
    Odin v.3 engine (ID:16)..
    File analysis..
    SetupConnection..
    Initialzation..
    Get PIT for mapping..
    Firmware update start..
    boot.bin
    NAND Write Start!!
    Sbl.bin

    Please help!!!

  • Jacky Chu

    HELP!
    HELP!
    HELP!
    HELP!
    HELP!!!
    HELP!

  • Nick

    This completely screwed my phone took me hours finding a original kernel ect, got it workin again, but ive lost my original backup of my stock ginger bread, could some please let me know where i can get a uk stock rom from so i get use it as back up im having to use the OTA ics room + root but its abit buggy, or a official stock ics rom please

    • linkhunter

      i got backup my samsung stock maybe that work on your phone

    • alee

      where you got original kernel and i want original firmware also…

  • kane

    hi, i just install the wrong kernal for my t989 now my phone wont turn on at all no power light no nothing help plzzzzz

  • dave

    hi i have a rooted gt-i9100 and was wondering what would happen if i just downloaded the ics update from my provider? would it just get rid of the root or would it cause other issues
    thanks

  • camilo

    hi, i just did all the steps an got to were the phone re-starts but now it wont go past the the S symbol …. did i do something wrong ??
    HELP !!!

    • Simon

      11.After you’ve got the PASS message, the phone will probably get stuckat S logo. If it reboots fine without getting stuck at the S logo, then okay, you’re done, skip to next step. Otherwise, worry not and do this:
      1.Boot to recovery mode — for which, first power off phone and after screen goes off, wait for 5-6 seconds, and then press and hold Home + Volume Up + Power keys together. Once you are in recovery mode, use volume keys to move the selection up and down and power or home key to select the option.
      2.Go to Factory Reset and select it. Select Yes on next screen.
      3.Now, go to Wipe Cache and select it. Confirm Yes on next screen.
      4.Now, select reboot system now to boot your Galaxy S2. It will boot up fine. And you’ll have official Android 4.0, Ice Cream Sandwich, firmware on your Galaxy S2 i9100. Go to Settings and scroll down and select About Phone and check the info there.

      • Jason

        I did it and it worked, but my samsung isn’t the same and I lost ALL my data like all my apps, pics, music, vids, I am really dissappointed it’s like and the root didn’t work and the unroot made me lose everything… :(

      • Victor

        Thanks bud! Everything worked like a charm and all my media is intact :)
        Cheers!

        p

      • jade

        Thank u so much for posting this! i had been at this for hours trying to figure out how to get past the glowing samsung s screen and this was the only thing that actually worked! much appreciated!

      • Nick

        I didnt have the problem you had Jason after i unrooted my GS2 i9100, it turned on but i couldnt access my msgs/phone log and heaps of other shit. but i did what Simon said and it fixed my phone. even though i dont have any of my previous Data, im still very greatful that my phone is running properly. Thanks alot Simon :) i was actually in a verry bad mood and now it feels as if a whole lot of weight has been lifted..

      • Jordin

        dude thank you so much !!!

      • Aman

        Thanks a ton bro !

      • rajesh

        thank u very much boss….i got my phone back…thnks alot..

      • Junior

        Your a bloody legend thanks a bunch dude . had me sweating like a sausage for a minute there haha :-)

  • bob

    guys, where you are going wrong is when you download your stock rom you also need to download the matching stock kernal. this is important thats why you see only the samsung logo.
    hope this helps

    • John

      But he didn’t say anything about kernel it was supposed to be just one file…

    • Nadeem Qureshi

      How do I find matching stock kernel? I’ve googled and googled, please help.

  • Road Runner

    Dont need to download anything else.

    You just have to find the stock/official rom and have it unzipped and ready.

    I made a mistake where the stock rom i downloaded was zipped and password protected. when i tired to unzip i entered a wrong password and my unzip program created some wrong files.
    Without realising this I ran odin and pointed to the wrong firmware file… Odin ran upto :

    Enter CS for MD5..
    Check MD5.. Do not unplug the cable..
    Please wait..

    this is the 1st time im using ODIN so i wasnt sure whether it was progressing or not. After about 30 minutes i saw it hadnt done anything and went to check what had happened and realised that i had made an error.

    I tired pressing the reset button on ODIN and ODIN got stuck. I killed it using task manager and ran it again.
    This time I unzipped the rom file properly and in 5 minutes i had the phone back unrooted.

    • rlimar

      can you give me the link of where you found the official kernel for the S2?

  • Daniel

    My button stopped working, what sud i do?

  • Gary

    I have just re flashed my GS2 and all is well and I have the same problem as Barn.
    does this mean that my GS2 is rooted and as such no longer supported by Keis or did we both miss something?

    Thanks

  • meido

    great atricle.
    i didnt unroot my galaxy s 2 yet but i want to know if the file that you published about ics is working on my version kernel XWLP3? or should i download from other site?

  • Ajay SIngh

    Hey…I need Your help…….i have rooted my phone…and later i updated to official ROM…

    but after updating the ROM my phone says unfortunately process.android.com stopped,…

    plz give me the solution………….

  • Khalil patel

    Hey I root my device b4 few months its wrkng gr8.. bt unfortunatly I want to unroot my phone again n I 4get wat kernal I had used.. so plz help me hw to unroot my phone.. plz rply asap thnx..

  • Darren

    Hi Max originally tried to download latest firmware via kies it failed halfway through spotted your video on youtube so i followed your instructions step by step and it worked a treat for me thanks.

  • Aditya

    Hey i just wanted to ask if this method works for gingerbread users and also mine isn’t an epic 4g. I also dont want the european version I want the Indonesian version of it as I live here.

    • Din

      Are you Jamie Aditya?
      lols

  • Jeff

    Where can I find the hong kong official rom(ZSLPE)?

  • Jeff

    it paused in the samsung logo, why is that happening?

  • hamilton

    I updated to official ICS, from a rooted Froyo. ICS runs fine, but I can’t get into ‘download’ mode to root the ICS software. Can someone running ICS confirm how to get into ‘download’ mode? cheers, h.

  • Krum

    Hey guys,
    i followed the steps and everything worked, except that my screen froze as well, but i followed the steps given by Simon. I have another question thou. When i start kies it says that it does not support my firmware. I read about it and i found that i have to change my kernal to original one. I did it but my phone simply froze… I did the same thing as given here as instructions just in the pda i attached the kernel. Nothing happen thou. I tried making factory restore and deleting the cache but it didn’t help this time. So can someone help?

    • Krum

      Once i failed to install the kernal i followed this procedure again, and this time i did not have to do what Simon said… strange anyway at least my phone is func. now. :)

      • ryzyryry

        Just a quick question as Iv’e scoured the internet for this, What Kernel goes with the above link for the ICS firmware? Is it possible for a link too?

        Cheers

  • Diwakar

    I am india, and today I updated my phone to ICS 4.0.3 xxpl7 by first changing the CSC code form INU to NPL, and then updated it through kies. I then rooted my phone using Odin, and now when i connect my gt i9100 to kies to restore from backup, it doesnt show up! please help guys!

    • Gladi8or

      Diwakar, once you’ve rooted your phone, KIES does not recognize your phone. If u want the data back, unroot your phone, and kies should recognize your phone just fine. Restore your data, make sure everything is in it, and THEN you root it. Rooting does not make you lose any data, so there. HOPE IT HELPED.

  • jeff

    My GOD it worked! now the phone is running even better than before it was bricked! And the most funny part is that it is unrooted but all the apps previously installed and all config such as wifi is still there. You MADE my day!

    • admin

      Nice! That makes my day too bud.

  • Ryanloh

    HI i follow your step to Unroot for my galaxy s2 and it works and one more thing is when i check the count is it still there then i check still there I NEED HELP HERE how to remove the counts? ASAP PLEASE!!!

    • admin

      try USB jig.

      • Ryanloh

        i dont have that HOW?

        • maddy

          you may use triagle remover app from google play, it will remove triangle + reset couter back to zero :p hope you get help on the isse. cheers!!

  • Imran

    CAN U USE THIS METHOD TO UNROOT a 2.3.3 gingerbread galaxy s2?

  • Venkat

    Hi,
    After unrooting do I get my warranty back?
    Please confirm…so that I will start rooting.

    • admin

      yes that’s the beauty of these samsung phones, not locked down like HTC or Moto.

  • Venkat

    Thanks in Advance..!

  • Xnutter

    Nice one you just helped me bring my phone back to life

  • firas

    my phone is working on gingerbread 2.3.5 which method do I use to return it to it’s original state

    • admin

      Either this or GB, you can use either or.

  • cookiemonster409

    my phone wont work after i did the steps. i am able to get to the downloading mode but whenever i on my phone, it just show the symbol where there is an exclamation mark in between a phone and a computer what should i do. PLS HELP

  • cookiemonster409

    is this method workable for my galaxy s2 which is on contract

    • admin

      yes works for all i9100 GS2 except i9100G.

  • Jason Don Paul

    HI there,
    as i run Odin 1.85 and i choose the said PDA file. After i run it, it prompts as Fail!

    PLEASE HELP

    • admin

      Make sure you have correct drivers installed.

      • jason

        Thanks a lot.
        I am back to stock IcS

  • angelo

    i did the steps..
    when it reboots, my phone pops out and says SYSTEM UI STOPPED as well as PHONE STOPPED.

    can anyone help me? please,,

    • angelo

      and also, my phone is tooooo slow..
      im using s2, ginger bread is theoriginal os, then i updated to ics through kies..
      then i root and flash a theme then it slows down my phone

    • admin

      Do a factory reset in stock recovery.

  • Gladi8or

    Hey zedomax ! Man, you rock. I learned every single thing regarding to rooting/tweaking with my phone on your website. Can u please answer me that after you flash your phone back to stock ICS, does KIES recognize your device again? Because i got all my contacts stuck up in KIES, and i want to get it back. Once i get it, i surely am gonna sync it with Gmail and then root it back! Do you continue to get updates from KIES, after you unroot your phone back to stock firmare? THANKS IN ADVANCE !

  • madfire

    thanks a lot for all your videos and stuff.helped me to unbrick my sgs2i9100.currently on xxlpq ics 4.0.3,can u tell me which would be the best customroms.
    thnks

    • Gladi8or

      In my opinion, definitely go for MIUI ICS and ICS Resurrection Remix. They’re both the best. The other ROMs are nice aswell!

  • Nora

    I completely messed up the phone in your video is not the same phone as mine. I do not have a middle button and now I can’t even reach the download mode to try and restore the original firmware. Is there any other way I can load the right firmware. I have an AT&T Galaxy S2

    • Max

      This is for model i9100 so you did flash the wrong phone but use the unroot method on att faq at the top of this site.

  • Dardan

    Hey can anyone help please? i had earlier installed Foxhound ROM than i did this that says in vid to unroot, it all finishes well but when it reboots it doesn’t start, it stuck at the logo animation “Samsung Galaxy S II”….anyone help ?

    • Nishit

      Yeah I have the same issue … to elaborate my issue, I was running on Gingerbread 2.3.6 (don’t remember the kernel version). Then I rooted the phone and was using ICS. I initially was using the Resurrection remix ICS ROM. After having a few issues with that, I installed the Foxhound ROM.
      Now when I tried to unroot my phone using this method, I am too stuck at the ‘S’ logo and the name.
      Now the battery is low and it won’t even charge so I can’t get into the download mode … what do I do admin?

      • Nishit

        hey I got it … now I have official ICS on my phone … thanks for all the help

        • Max

          Ok nice.

          • Dardan

            help ? i’m still stuck at that S logo ?

        • Rahul

          Hi Nishit,

          Im facing the same issue, stuck at s2 logo after reboot. How you got it fixed???

        • Raj

          Hi Nishit,

          I am facing same issue.
          Can you share how did you resolve it?

  • sreekar

    anyone know the password for this ics os…….

    • Sylvester

      works perfectly but is there any tutorial to root back galaxy S2 i9100?

  • Haider

    Hi,
    what rom were yuu using before yuu installed the new one ??????

  • Dardan

    it’s ok i got it, all you have to do is reboot and wipe.thnx

  • Joel

    Hi thanks

    Zedomax you are the best and all the help and step by step instructions to install roms Thanks

    Very much going to sell galaxy s2 and buy galaxy s3

  • David

    hey i was wondering if this would work for my samsung galaxy s2 o2 gti9100p so i can get my warrenty back?

    • Max

      Yes.

      • David

        hey ermm i just unrooted my phone and it worked but when i start my phone it says gt-i9100 instead of gt-19100p would that make any difference?

        • Max

          Should be fine.

          • David

            one final thing is that my phone started to freeze and so i master reset it but my kernal is still flashed can i restore this?

            • Max

              You mean you did factory reset?

              • David

                yes and my phone froze and i had alot of hardware issues is there anyway i can resolve this?

                • David

                  even though my phone is o2 gt i9100p, my phone says that it is gt i9100 and its totally changed i was wondering if i could restore it as it came out of the box please help me :)

                • Max

                  Try a factory reset.

                  • David

                    thank you for the quick replies but i have done a master reset and my phone still appears to be gt i9100 and not o2 uk gt i9100p if i can restore it like it was fresh from the box i will be very happy

                    • Max

                      You need to unroot to o2 branded stock rom try the gb unroot method but look for o2

                    • David

                      could you send me a link to one please? i cant find the o2 branded stock rom

  • Jamil

    Max i tried this unroot method and it was done, but when done i got more errors than anything ever before, i had to go back to salman v3 as it just give errors on first unlock.
    How do i fix the errors that i keep getting. And i also am still having the problem download via google play

  • Gagan

    hey i just flashed d officil ics on my rooted phone…does dat mean my phone is unrooted now????
    and i am facing some problms
    1.whenevr i am tryin to login in samsung account it fails
    2.wenever i am adding facebook account from social hub it also fails
    after flashin i did factory reset my fone
    plz help me out MAX!!!!!

    • Max

      Try wiping cache in cwm.

  • ruls

    hei there max..i need help..i am stuck when i run ODIN mode and hit Start button..after that a message is pop out : parameter is incorrect..how do i deal with this??
    thanks…

  • LDC101

    I accidently downloaded the g s3 firmware from samfirmware, and after Odin finished my phone just died…………………………………………………………………………………………….., even if I plug in the charger, nothing happens. what now

  • driod

    i followyour steps but then it stops in odin with boot.bin. help!!

    • Max

      Try again without using usb hub or just try again untjl it works.

  • joan

    Hi pls andriod gurus i need ur help plzzzzzzzz. My samsung galaxy s2 at&t 177 was on flight mode while i was transfering movies from the computer to the phone. The phone went off n fresued to come on since then. Plz tell me what do i do?

    • Max

      Does it turn on at all?

  • Navethan

    ive tried to flash ressuection rom 2.5.3. and i failed. im currently stuck at boot logo. does this unbrick my phone

  • navethan

    ive tried to flash ressuection rom 2.5.3. and i failed. im currently stuck at boot logo. does this unbrick my phone?

  • navethan

    you are a lifesaver if this work…

  • Casper Henne Andersen

    I followed the steps very closely and it goes fine until odin comes to boot.bin. It gets stucked and nothing happens. Anyone knows how to fix this?

    • Max

      This happens when you use a USB hub or you can try again using another USB port, try that.

  • German!

    Perfect! amazing i was terrified great blog! but along time is downloading the ROOM my SGS2 its Back!

  • akshay

    after unrooting will i still get the yellow triangle??

  • Dan

    Hi, will this help to remove the yellow triangle when the cellphone starts?

    • Max

      To remove triangle use the triangle away app available at xda forums. 😉

  • Rahul

    Ahh…it finally worked. Glad to have my phone back :)

    • Raj

      Hey Rahul, your phone was stuck at S logo right? Can you share how did you resolve it?

  • samyuktha

    Help Please

    My s2 got stuck at the boot logo (samsung galaxy s2 GT-I9100G).. It doesn’t reboot after rooting using odin3…
    I’m unable to get my phone even to recovery mode. i tried using home,volume down,power… but in fail. it restarted again and got struck at the boot logo,..
    Any help to get my phone back to use will be appreciable..

    • Raj

      Did you root or unroot?
      This thread is for unrooting.

      If you unroot it and followed above steps, then there are additional steps to be done.
      If it gets stuck on S logo,
      Then press home key, volume UP (its UP) and power.
      The screen will give u various options, choose the following in sequence one after the other.
      Factory reset
      Clear cache
      Reboot

      Hope this works for you…it did for me…

  • JONEZ

    Just wanted to say a H U G E thank you for this, my S2 hung up after a software update went wrong. I had in fact set up a repair with my provider & was resigned to loosing my phone for 7 days when I though Id just search & try a fix myself seeing as it wasn’t working anyway.

    Google bought me here, I followed each well layed out step & now I’m happy to report my S2 is fine & I’m happy again.

    THANK YOU !!!!!!

    • Sanu

      can you help me too?

  • nik

    LINKS DONT WORK

  • Raj

    Hi,

    I followed the steps to unroot and get official stock.
    All the steps went fine.
    The status was green on my ODIN, phone restarted
    But my phone does not go past the logo now. It stays at that logo forever.

    Any guidance would be appreciated.

    Thanks!

    • Raj

      Got it up and running :)

      • Sharukh

        Hey RAJ ….
        my S2 is still stucked there.. can you please tellme how u came out of it..
        reply ASAP.. its Urgent

        • fumoffuXx

          quoted from Raj:
          Raj says:
          July 25, 2012 at 9:11 pm

          Did you root or unroot?
          This thread is for unrooting.

          If you unroot it and followed above steps, then there are additional steps to be done.
          If it gets stuck on S logo,
          Then press home key, volume UP (its UP) and power.
          The screen will give u various options, choose the following in sequence one after the other.
          Factory reset
          Clear cache
          Reboot

          Hope this works for you…it did for me…

          • Àlex

            Hi! I’m another user and I want to notice you that I followed this steps and it works correctly. Thank you so much!!

            • Uriel

              I worked for me. thanks

  • Raj

    Max,

    Can you please help…

    I followed the steps to unroot and get official stock.
    All the steps went fine.
    The status was green on my ODIN, phone restarted
    But my phone does not go past the logo now. It stays at that logo forever.

    Any guidance would be appreciated.

    Thanks!

    • Raj

      Max, got it up…
      thanks anyway for this chain…

  • Lawrence

    Hey Max,

    Just wondering if you ahve any ideas on how to help me with my situation.
    For some reason RR 2.6.1 messed up my phone (maybe it didnt download correctly and was corrupted).
    In any case I tried to unroot/unrick the phone but after passing through ODIN it reboots and sits on the Samsung reboot screen. I’ve tried repeating the unbricking but it still behaves the same.

    Any help will be appreciated.
    Thanks Max!

  • Ian McCluskey

    WOW! This is the only thing that worked for me after it ‘bricked’ itself. I clicked on CWM to reboot into download mode and it just got stuck in a boot loop on the Samsung Galaxy S2 logo. I tried many different things advised all over the web – all without any success at all – I wasn’t even able to recognise the phone in the end! Changed the USB port, started from the beginning of this page and it flashed the suggested ROM first time. Took a couple of attempts to boot up and I did a factory reset (couldn’t do this until now) and wiped the cache and then TA-DA!!!My phone worked again.

    THANK YOU, THANK YOU, THANK YOU!!! xxx

  • Kejas Shah

    I followed your steps and everything went perfect. thank you.

  • Birdman

    I have ran ODIN twice in attempts to reinstall the Stock ICS rom but after i do it the battery empy/charging screen just flashes and thats it.
    Holding VolUp, Home n Power does nothing only VolDown, Home n Power to go back to the download mode.
    I really need my phone. How do i get the thing working again. The reason i am going back to Stock is RR rom would not load, kept stopping on RR bootup screen.
    Mitch.

    • i9100

      Best way is to get a usb jig and then retry doing the odin.

  • ahbao

    is the link broken, i’ve tried a few times but it isnt working.

  • GAlaxys2

    hey can you help me im stuck at the boot screen with the S after flashing to stock

    • i9100

      Try to wipe cache and do a factory reset by going to recovery mode. (Volume up+ home button + power) and then try to reboot your phone. It should work. Try to run odin once again. Make sure all boxes are unchecked except auto reboot.

  • Ken

    Hi, I just rooted with the 5.3 kernel you provided. All seems to be normal except for one thing: I cannot install apps on my SD card anymore. Any solutions to this problem? Thanks and hope to hear a reply soon

  • shah

    Hi All,

    Appreciate any gurus here can help me to solve the issue.

    My S2 was running ICS 4.0.4 custom ROM for like 4 months ago and it ran flawlessly until yesterday I’ve tried to perform backup using CWM. I forgot what version of CWM and whay Kernel that I’m using. SO I just simply did the normal Vol Up+ Home + Power press and hoping the CWM interface would appear. The thing is the expected interface was not appear and it just restart the phone. I tried once again as I thought the method I used was wrong so I press again but this time I used Vol Down + Home + Power. What appeared was the download mode and I know that is not what i want so i press Vol Down to cancel and expecting the phone to get restarted.
    Scary thing happened as my phone only display the “Samsung Galaxy S2 1900i” for a few second and went black again. I’ve tried couple times but same thing happen over and over again.

    Question:
    1. Is this behaviour called “Brick Phone” ?
    2. If yes, how to solve it without harming all my personal data in the phone memory as wel as external sdcard?
    3. Please ..oh pleaseeee help me as I need my phone back alive!

    Thank you

  • chullian

    i unrooted my GT i9100 successfully,but after unrooting my device shows that
    “the process.android.process.acore has stoped”
    and the device get stucked for a minut how to fix this problem?

    • i9100

      Does this happen often?

      • Zac

        i got the same thing and it doesnt go away :/

        • chullian

          i wiped my settngs via clock work mode………then my phone going nicely……

    • Ndoflush

      factory reset phone i Stock recovery

  • Bailey

    what can i do if it fails? :/

    • i9100

      @Bailey
      If what fails?

  • Zac

    i followed the video but now it has turned on and says “the process com.andriod.phone has stopped” and also LogsProvider has stopped.. can you please help if you know what is going on?. thanks

    • Max

      try a factory reset but that will erase everything on your phone.

  • Malcolm

    hey Max Malcolm here again. OK my phone’s all good except the Gallery is having some problem n when i go to set d wallpaper d gallery app just freeze’s and doesn’t work. please give me some solution for it. Thank’s in advance

    • Max

      Try factory reset but that will erase everything so make a backup beforehand.

  • mhk

    Thank you very much, I unrooted my Galaxy S2.

    • mhk

      But now I can’t update my android 4.0.3 to 4.0.4 via Kies :(. When I open Kies it says ”Your device does not support software upgrading via Kies.”

  • graham

    everytime i try to do something i keep getting message androi.process.acore has stopped and will not go through software update……why is this?

  • graham

    i done everything it says on the instructions……….everything loaded fine and now my fone wont do anything because this stupid message keeps appearing!!!!!

    • Max

      do a factory reset.

  • Srdjan

    I did everything like you said, and everything was okay, however now I’m stuck with the S logo …. What can I do to last much longer than 5-10 minutes ….

  • James

    Will stock rom work if my current baseband is:
    I9100XXLPS

    ?

    I am running resurrection on a rooted phone, just wondering if when I flash in Odin to this stock rom with a different baseband if all will go well, or if that is a no-no.

    Thanks

  • Aaquib Badi

    After you’ve got the PASS message, the phone will probably get stuckat S logo. If it reboots fine without getting stuck at the S logo, then okay, you’re done, skip to next step. Otherwise, worry not and do this:
    1.Boot to recovery mode — for which, first power off phone and after screen goes off, wait for 5-6 seconds, and then press and hold Home + Volume Up + Power keys together. Once you are in recovery mode, use volume keys to move the selection up and down and power or home key to select the option.
    2.Go to Factory Reset and select it. Select Yes on next screen.
    3.Now, go to Wipe Cache and select it. Confirm Yes on next screen.
    4.Now, select reboot system now to boot your Galaxy S2. It will boot up fine. And you’ll have official Android 4.0, Ice Cream Sandwich, firmware on your Galaxy S2 i9100. Go to Settings and scroll down and select About Phone and check the info there.

    NOTE: IT MAY DELETE ALL THE PICS, APPS, VIDEOS ETC…

    • Sinisa

      Thank you very much! My phone was stuck on S logo, but by fallowing your tutorial now works fine.. <3 you :)

  • Cheng

    Wow.. i cant believe it worked my phone was almost dead i tried everything, but this was the only working method for me thank you so much! (:

  • samer

    hey Max
    i have the stock firmware on my s2 (not rooted) can i update to stock ics via odin ?

    • Max

      yup

  • sufi

    i have rooted my galaxy s2 which was on ics 4.+ after rooting i updated my phonewith root box jelly bean but now i want to unroot. can i able to unroot with this method .i am in india.before upgrading my phone firmware was xxlpq7

    • shubham

      did u get any method???

  • jaja

    Hi Max, I have rooted my phone using your method and now I want to unroot it. However my sgs2 was on gingerbread before this. Can I update it to ICS with this method? Thanks!

    • Amar

      Hi Max,
      I have rooted my phone then installed CM10, it was working fine, but the task manager was not working and the phone was not charging when it was on. It charged only when switched off.
      Now I unrooted to ICS, but the same thing is happening, phone is not charging when it is in ON condition.
      Also samsung kies is showing that “Your device does not support software upgrading vie kies.”

      I want Android 4.0.4 as it was before because in 4.0.3 the WIFI and WIFI Direct doesn’t work.
      Please help me.
      Thanks

    • Max

      Yup.

  • Amar

    Hi Max,
    One thing more, my phone is also heating more than usual.
    Please help me.

    Thanks

    • Max

      That is normal when you install new ROM or unroot your phone, it will go away after couple hours.

      • Amar

        No this is not normal, Phone is heating all the time, not just for couple of hours.
        And what about charging.. Why it is not charging when switched on?
        Have you any solution?
        Thanks

  • Steph

    Hi Max! I think I’ve made a bis mistake. My volume buttons doesn’t work so I tried to flash a CWM touch recovery to continue flashing others roms but the CWM I’ve flashed was for t-mobile and I didnt know. Then the phone displayed me the message : firmware upgrade encountered an issue. please select recovery mode in kies and try again. I decided to bring my phone to downlaod mode with my usb jig and follow your step. I don’t know if its because I was on Jelly Bean rom but my phone was sticked at the boot logo. Then I’ve tried to root it back with cf-kernel like in your other post but same thing.. so i’m stock on boot logo. Could you help me ? And remember I can only go to downlaod mode with my usb jig. I can’t go to recovery mode because my volume buttons doesn’t work. Your help would be very appreciated. And sorry for the english language.. not too good. Thxs !

    • Max

      try unrooting to get ur phone working.

  • Dan

    I did everything and waited a long time. Finally ODIN said FAIL! What should I do?

    • Max

      Try using another usb port.

  • marc

    i followed steps exactly and now its stuck at s2 boot up screen with the shining “s”???

  • Dominic

    I’m stucked at S samsung galaxy s2 logo for about 15min.what should i do?

  • Dominic

    pleeeeease answer!!!

    • John

      READERS BEWARE !!! I have the exact same problem.
      I followed all the steps but on reboot, the phone is stuck on the Galaxy S2 logo. There is no way to boot the phone anymore…

      FYI my phone is a GT-9100G with ICS.

  • JD monleon

    hi i cant DOWNLOAD the STOCK ROM

    • Mike

      Good Day Max!

      The download link is down. Please help. My GS2 have this error message “charging paused because of over voltage” and i need to unroot my phone for warranty purposes. Please Help max.

      Download link is down.

      Thanks in advance.

      Mike

  • joanne

    hi! just wanted to ask a few things.. its my first time to unroot my phone since my problem started when i tried to update in kies and it went on update failed.. i wanted to do recovery upgrade but i can’t because my phone won’t go into recovery mode.. im thinking that unrooting it would be the best way to solve the problem..

    so my question is.. after unrooting my phone can it still connect with kies afterwards? since its in kies that i manage all my pics, vids and songs, etc.. hoping for you fast reply.. thanks..

  • djnr

    hey max i downloadded da sgs2 4.1.2 jb leak but wen i use da odin it gets stuck up at the settingconnection and then i hav to strt all over again….nw my sgs2 has ended up network locked and im really confused…im very worried too….pllllllllllllllllllllllsssssssssssssssssssssssssss i need help…plssssssssssssssssss

  • Wei feng

    I followed all your steps it works but very 20 seconds it keep freezing up and there is a message saying unfortunately, the process android.process.acore has stopped
    Can somebody pls help me?

    • Ndoflush

      factory reset Your phone in recovery mode. that should fix Your problem. if it didnt work, try to reflash the odin file

      • Wei feng

        I can’t boot to recovery mode. It only goes to the download mode

  • Nick

    hey,

    im all new to this and i was just wondering if this is 100% safe for my Galaxy S2 i1900XXLQ6, if it doesnt go as planned, is there any way to fix whatever problems that may occur? and also after i rooted my Galaxy s2 (4 days ago) i only installed one rom (beats audio that was for the T Mobile SGS2) and now i cant view vids from my gallery or vids from youtube & my camera screen is black but takes photos fine, also my bluetooth doesnt turn on! would installing this STOCK ROM remove the beats audio rom and fix the vid,cam&bluetooth problem? Thanks in advance..

    • Nick

      can someone please help me here, im not sure if i should install this ROM seeing as alot of people have problems after they done so… i just want to know if it would fix the problem i have with my SGS2 after installing it and if i would be able to root my SGS2 again? HELP ME!

      • Nick

        Okay so i installed the stock ICS rom praying that my phone wont f*** and it did, it kept saying “the process.android.process.acore has stoped” and awhole lot of other apps have stoped. but then i did a factory reset (cause someone suggested it to someone else) and it fixed my phone. does that mean my phone is Unrooted and would i be able to root it again the same way i did the first time? please reply….

  • Ehab

    everything went well
    but then it said installing applications and its stuck there
    i can start and shut down the phone but when i unlock it that page comes and stay there
    what should i do ?

  • Lee

    I done what you said to do in the video, but is there anyway to revert back to my original android & baseband version? I backed up my gs2 via CWM, if i restore the backup file would i get back my old/original android and baseband version?

    • jeetu

      Sir plzz tel me the official firmware of india fir my gs2 so that i can install..plzz help ! thnxx in advance

  • Dicky

    Hi Max,
    i just followed all the step here only take 15minutes and now my SGS2 running ICS 4.0.3 smoothly.
    Thanks alot for this useful post

  • Nilankan

    Hi dude,
    I can be categorised as a noob, or whtever. But all i wanna know is where to find the secure or original kernel for indonesia kernel : DXLP7 . which i cant seem to find anywhere. could you please provide me with a link to download it please? need it for safety.. because i saw once, when i unrooted it to europe secure rom, it said in kies update, that my phone is not from this region so cant update. please help me….

    • Nilankan

      Or please provide me with any alternatives so i can safely update my phone after unrroting to any rom possible. thats all my knowledge about unroot so ya…

  • Prian

    i want to unroot my phone because i want to give it in and get a new one.im currently on alliance rom isc 4.0.3 i am scared to carry out this unroot in fear of brivking my phone plese tell me what can i do

  • kaye

    okay so my phone is charging and then while charging, i’m uninstalling an app and then i found my phone restarting. and now it is stuck on the boot screen. all the solutions that i saw was a factory reset. but i don’t want to wipe all my files and apps in my phone :( what do you think will be the solution for this? please! someone help me! :(

  • Syed

    Thanks Pal, it’s working great!!

  • Sasa

    If I have stock rom and root it, must I install apps and set up phone after unroot, do I loose my data? It is borring to install all again and I’ll loose game levels and highscores.
    thnx

    • Max

      not if you back up ur apps using titanium backup app.

      • Sasa

        Thanks a lot :)

  • Freddy

    I managed to get my phone working (coming from a stuck at boot) so thanks alot for that!

    Now everything is back to stock wich is great, but when connecting with Kies it says I can’t update. Anyone knows why this is? Have I flashed the wrong way?

  • Michael Huikeshoven

    Thx for this tutorial i rooted my phone yesterday but got alot of problems like black screen with the camera app, bluetooth not working and the ability to move apps.
    But when i unrooted it my phone was slow as hell, but i did a factory reset and now it works as it should.

  • Tasos

    Thank you very much for your instructions! Everything worked fine for me! However, no backup/restore was needed. Everything was there,nothing changed! Is this how it is supposed to work?

  • inder

    my s2 gti9001 is nt responding at all… nthing happens, screeen remains blank when i try to get it into downlding or recovery mode…DIS IS WHAT ACTUALLY HAPPENED WHEN I WAS FLASHING MY PHONE..

    1-i got into dwnloading mode
    2-tried flashing it with odin
    3-odin stopped with message that choose the PIT file again.
    4- i realised dat i choose the wrong PIT file..
    5-i jst simply unplugged the phone from usb n my pc, thought i would repeat d process again wid d correct PIT file
    6-but when i tried again my phn didnt respond at all …

    what should i do??it doesnt go into downloading n recovery mode…..plese help …

    anyone wid any solution,,,,PLEASE HELP..

    • inder

      srry i mistyped it..
      the model is GT-I9100

  • Khem

    Hi guys

    When ODIN runs, I don’t see any yellow highlight with a COM appearing. I even installed Samsung Kies and plugged in the micro-USB cable back to the phone.

    Still can’t see it.

    Please HELP !

  • Khem

    Hi guys

    When ODIN runs, I don’t see any yellow highlight with a COM appearing. I even installed Samsung Kies and plugged in the micro-USB cable back to the phone. Still can’t see it.

    Please HELP !

    • BlackDon

      Heey Khem,

      You sould try this..
      1) Startup your pc
      2) Startup Odin
      2a) When the yellow highlicht doesn’t appear you sould install Samsung Kies.
      2b) When this isnt enough u sould try troubleshoot in Samsung Kies so it will reinstall the USB drivers for the Galaxy s 2 (i9100)
      2c) Reconnect your phone with Odin
      3) Press PDA
      4) Search your ROM
      5) Hit start, and wait untill it pass

      You also can give it a try by using an other USB port.
      I hope this will help you out.
      Please let me know.

  • kevin

    im at a point to be at anybodys mercy if you can help. i did not unroot ….i flashed clockworkmod and thought it was just loading but it was not. the screen just dimly blinks and thats it. i can only go to download mode and thats it att galaxys2 sgh-i777 is what im dealing with so if anybody can help then i would much appreciate it purrrrdy please?

  • Tina

    Appreciate any gurus here can help me to solve the issue.

    My S2 was running GingerBread 2.3.1 custom ROM for like 4 months ago and it ran flawlessly until yesterday I’ve tried to perform backup using CWM. I forgot what version of CWM and whay Kernel that I’m using. SO I just simply did the normal Vol Up+ Home + Power press and hoping the CWM interface would appear. The thing is the expected interface was not appear and it just restart the phone. I tried once again as I thought the method I used was wrong so I press again but this time I used Vol Down + Home + Power. What appeared was the download mode and I know that is not what i want so i press Vol Down to cancel and expecting the phone to get restarted.
    Scary thing happened as my phone only display the “Samsung Galaxy S2 1900i” for a few second and went black again. I’ve tried couple times but same thing happen over and over again.

    Question:
    1. Is this behaviour called “Brick Phone” ?
    2. If yes, how to solve it without harming all my personal data in the phone memory as wel as external sdcard?
    3. Please ..oh pleaseeee help me as I need my phone back alive!

    Thank you

  • Jordin

    help me i unrooted my phone ..
    but it stays on the S logo and my computer says “unknown device”
    what to do help me pleas!
    thank u..

    • BlackDon

      Hello Jordin,

      You should try to install new drivers.
      You can do this by using samsung kies debugging or
      USB-Debugging in your phone.

      let me know if it helped.

  • king loko

    hi men would this work for my sprint galaxy s2 ??? need help

  • Marcela

    i’ve downloaded and installed kies like 4 times and the yellow box just wont appear!
    i run it like that and root my phone any way and worked perfectly! now i want to unroot.. same problem with no yellow box. so run the unrooting anyway and got this

    Enter CS for MD5..
    Check MD5.. Do not unplug the cable..
    Please wait..
    I9100XXLPQ_I9100OXALPQ_I9100XXLPQ_HOME.tar.md5 is valid.
    Checking MD5 finished Sucessfully..
    Leave CS..
    All threads completed. (succeed 0 / failed 0)

    what could be the problem?

  • Hellsing

    thanks a lot! It work on my first attempt 😉

  • maddy

    Does this work if I rooted my phone on jellybean?

    • Maddy O

      I’ve been trying to find out the same thing and I’ve come up with nothing :(

  • Gilmer van der Hak

    I did everything you did, but for some reason the locking screen doesn’t work, and when holding down the power button it shuts down immediately instead of showing that menu where you can choose to restart, shutdown etc.

  • Patrik

    Stuck here for ages:
    Added!!
    Removed!!
    Added!!
    Enter CS for MD5..
    Check MD5.. Do not unplug the cable..
    Please wait..
    I9100XXLPQ_I9100OXALPQ_I9100XXLPQ_HOME.tar.md5 is valid.
    Checking MD5 finished Sucessfully..
    Leave CS..
    Odin v.3 engine (ID:3)..
    File analysis..
    SetupConnection..

    Any help ?? :)

  • Shurjith

    does this work with dxkf4

  • Shurjith

    does this work with dxkf4 kernel

  • Gavin Smith

    Been repeatedly getting issues when trying to flash back to a stock ROM. I had followed the rooting guide here for my i9100. It was on ICS stock rom before rooting. Rooting was successful, using

    Kernel_I9100XXLQ7_INSECURE

    Then tried installing CM10 nightly onto my Galaxy S2.

    cm-10.1-20130318-NIGHTLY-i9100

    After that phone hung with black screen after the Samsung boot screen. Followed this guide to try to restore back to stock firmware but have repeatedly got issue where odin hangs at factoryfs.img. Have tried multiple different roms so far all hanging at this step but tantalisingly some seem to progress more than others – so far have tried:

    I9100XXLPQ_I9100OXALPQ_I9100XXLPQ
    GT-I9100_CPW_I9100XWLP7_I9100XXLPS_I9100CPWLP5
    GT-I9100_XEU_I9100XWLP7_I9100XXLPS_I9100XEULP5

    the CPWLP5 ROM above progressed furthest in the factoryfs.img download but still didn’t complete. However, now as i’ve been attempting this for so long i’ve now got the red ‘Low Battery Can’t Download’ message (battery was full when i started)

    Any ideas on how to recover?

    • Gavin Smith

      Fixed by using a different usb cable

      Been repeatedly getting issues when trying to flash back to a stock ROM. I had followed the rooting guide here for my i9100. It was on ICS stock rom before rooting. Rooting was successful, using

      Kernel_I9100XXLQ7_INSECURE

      Then tried installing CM10 nightly onto my Galaxy S2.

      cm-10.1-20130318-NIGHTLY-i9100

      After that phone hung with black screen after the Samsung boot screen. Followed this guide to try to restore back to stock firmware but have repeatedly got issue where odin hangs at factoryfs.img. Have tried multiple different roms so far all hanging at this step but tantalisingly some seem to progress more than others – so far have tried:

      I9100XXLPQ_I9100OXALPQ_I9100XXLPQ
      GT-I9100_CPW_I9100XWLP7_I9100XXLPS_I9100CPWLP5
      GT-I9100_XEU_I9100XWLP7_I9100XXLPS_I9100XEULP5

      the CPWLP5 ROM above progressed furthest in the factoryfs.img download but still didn’t complete. However, now as i’ve been attempting this for so long i’ve now got the red ‘Low Battery Can’t Download’ message (battery was full when i started)

      Any ideas on how to recover?

  • Filip

    Will I be able to update it via Kies to official 4.1.2?

  • Arsalan

    Please help..phone stuck at yellow triangle,
    I updated my sgs2 from ICS to jellybean 4.1.2 officially yesterday. I wanted to root it as mentioned in this website. I rooted it successfully. To my bad luck I tapped the installed supersu as mentioned in the video. It asked me to start in CWM or normal, I opted for CWM…Now my phone is stucked at the yellow triangle.. I cannot enter CWM recovery..I can go to download mode but it is not going to start normally…please help…Can I unroot to ICS official as mentioned above..

    • Max

      You can unroot yes.

  • Arpit

    Hi, I have followed all your instructions, but while booting the phone is struck on the galaxy s2 logo and not going further. I shut it down and again booted it, but the same is happening. Please help.

  • Harsha

    Thanks a lot. My phone is back !!!

  • steven

    hi can u help me ive unrooted my SGs2 it boot up ok then it keeps crashing and a mess saying unfortunately, the process android.process.acore has stopped and notice my android ver is 4.0.3 but B4 i unrooted it was 4.0.4 ver plz get back to me plz

    • Max

      You can download a 4.0.4 firmware or higher from Samfirmware.com and flash over with ODIN for fix.

  • curtis

    hi i unrooted my phone and everything went fine, until it was restarting. my phone is stuck on the “S” icon. please help

  • andrei

    thx guys . this run perfect :* i love you soo much

  • Daniel

    Hi i was wondering if you could help me. I have installed the drivers for my s2 and kis is not running but when i put my phone into download mode the computer still does not pick up the phone. and i need to put the stock firmware as i have bricked the phone.
    Thanks

  • ch srikanth

    I just tried to install ICS through Kies and got this error message on the desktop. It was during the install process. My phone had the android robot (but not the picture of his back open and gears running). The phone said something to the effect of downloading and not to unplug the target.

    Kies told me to…

    1. Disconnect the mobile phone from the cable, remove the battery, and reattach the battery.
    2. Press the Power button
    3. Make sure that the mobile phone has been turned on completely.
    4. Reconnect the mobile phone to the cable and start the upgrade.

    I did all this, but when the phone rebooted it has a yellow triangle with ” ! ” on it saying “Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again”.

    Kies doesn’t see that a device is installed. It just keeps saying “connecting”. I hit “tools”, “Emergency Firmware Recovery” but it still does nothing. It doesn’t recognize the device.

    Help?

  • ch srikanth

    I just tried to install ICS through Kies on my Galaxy S2 GT I900 and got this error message on the desktop. It was during the install process. My phone had the android robot (but not the picture of his back open and gears running). The phone said something to the effect of downloading and not to unplug the target.

    Kies told me to…

    1. Disconnect the mobile phone from the cable, remove the battery, and reattach the battery.
    2. Press the Power button
    3. Make sure that the mobile phone has been turned on completely.
    4. Reconnect the mobile phone to the cable and start the upgrade.

    I did all this, but when the phone rebooted it has a yellow triangle with ” ! ” on it saying “Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again”.

    Kies doesn’t see that a device is installed. It just keeps saying “connecting”. I hit “tools”, “Emergency Firmware Recovery” but it still does nothing. It doesn’t recognize the device.

    Help?

    • Max

      You need to run ODIN again in that mode, when something messes up and your firmware doesn’t flash 100% you willg et that error, just reflash until you get “PASS!”

  • Aman

    It shows
    **

    ID:0/016> cache.img
    modem.bin
    RQT_CLOSE !!
    RES OK !!
    Completed..
    All threads completed. (succeed 1 / failed 0)
    Removed!!
    Added!!
    Removed!!
    **
    Now my phone is not switching on . stuck at the “S” symbol !
    HELP HELP . what do i do ?

  • sidney

    HI Max having issue with my GT-i9100 where i try to flash the i9100XXLSJrooted.tar and now I get an error with the following message “Firmware upgrade encountered an issue, Please selsct recovery mode in Kies & try again”

    I get into download mode and try to flash stock rom, I9100XWLS8_I9100XXLS8_I9100FOPLS3_HOME.tar.md5
    and I get an error where I get the follow error.
    Added!!
    Removed!!
    Added!!
    Enter CS for MD5..
    Check MD5.. Do not unplug the cable..
    Please wait..
    I9100XWLS8_I9100XXLS8_I9100FOPLS3_HOME.tar.md5 is valid.
    Checking MD5 finished Sucessfully..
    Leave CS..
    Odin v.3 engine (ID:27)..
    File analysis..
    SetupConnection..
    Initialzation..
    Get PIT for mapping..
    Firmware update start..
    boot.bin
    Complete(Write) operation failed.
    Added!!
    All threads completed. (succeed 0 / failed 1)

    please help

  • Dell

    Hello, I have stock android already but just the ‘Jeboo Kernal’ is it possible to just use a stock android .tar file for the kernal? Thanks.

  • Cheo

    Can some one please help me..I was able to root my phone galaxy s2 but my home button wasnt working so i tried to unrooted it and know its stuck in a loop after the galaxy logo shows up…i ran odin by when i tap on PDA and click on the file i downloaded to unrooted like it says on the the top of the it wont show up in the PDA section and it nothing else show up by the siyah that i originally used to rooted in the first place..So my ? is how come the file to unrooted wont show up in the PDA area. MY phone is being recognized by odin but odin is not recognizing the file used to unrooted PLEASE help

  • Luka

    Hello! I have a GT-i9100
    Can I simply flash a Jelly Bean rom instead of Ice Cream Sandwich rom in Odin, to unroot and simultaneously update to android 4.1.2???
    Thanks!!!

  • Roberto

    Buddy thanks a lot…workin’ perfectly

  • reza

    my phone is 4.0.4 after unroot my phone is 4.0.3…. and have same problem. plz help max.

  • Semanu

    hi Max I may be late to this forum…but im having a problem with my s2 and after going through the web searching for soultions but not finding anything tangible I remembered this forum…because it was over here I learnt basically everything about rooting and android…I started with an s2 gt i9100 but im now using the s3….

    well my problem is I wanted to update my sisters phone s2 i9100 to the official jelly bean using odin. it was previously on android 2.3.5 ….but im now stuck in a boot loop I tried factory reset and clearing the cache according to the guide I was following but couldn’t resolve the problem…I even flashed multiple times through odin again but still in the boot loop…

    so my question is can I flash this firmware using odin or if you have a better solution please help me…

  • Loren Bagby

    So this is not really unrooting, it is wiping the phone and re-installing the OS so that you you lose everything. Unrooting would just be removing the root modification.

  • Gemma

    Hi there I tried to root my phone, as I wanted to unlock it using a chainfire program, I wasn’t sure which unsecure kernal to use, but i was told it didn’t matter if I was going to put a secure kernal back in once rooted, problem is the root never properly worked, and when it would reboot I would get the samsung screen with yellow triangle and then it went black, so I tried your method but got tuck in a boot loop, so I then had to do a factory reset through the recovery boot mode, which was fine and my phone is on, obviously all my data (apps and progress is gone) not a lot to be done there, but my OS is different, I had recently (about 2weeks ago) had an update, so when I pulled the task manager bar down, it would scroll as there were more than just 5 options to be quick clicked. also I was able to put my app menu in alphabetical order, so basically I appear to be on an older OS but I am unable to update through my phone and kies as well, as it tells me my firmware is not supported for upgrade through kies.

    I believed I was on a ICS version, though reading up about latest firmware there seems to be a later version but jelly bean? I had reason to believe JB was earlier than ICS, but maybe not? I am currently 4.0.3. If I recall I was 4.1 something though I am not 100%, but I know this OS is earlier.

    Basically I miss my previous OS and dunno what more to do, etensive search is driving me brain dead, any help possible?

  • Fotini

    Hi i need help im getting an error
    ” Cab’t open the serial (COM) port.”
    Is this because i am not using the official samsung usb cord because i lost it.
    Like my device wont even connect to samsung kies but my phone pops up in my computer and before i bricked my phone i could not transfer files over to my phone is this beacause of the cord…..
    I need help unbricking my phone

  • shonanigans

    Hi there im so sorry if ur repeting but I think ive hard bricked my phone…3button combos dont work to get to download mode…was installing unzip software when the phone just turned off and now it wont come on!!?? Any ideas where to start!?

    • shonanigans

      Sorry this was for s2 i900…

  • shonanigans

    Sorry this was for s2 i900…

  • Fotini

    I used this and it worked i unbricked my phone but now that i want to update i cant…. in samsung kies it says theat i have unsupported firmware….
    What can i do to fix this ???

  • Ralph

    Where I can find other official Samsung’s ROMs? Couse I installed that ROM u gave above and that bricked my phone. I just wanted to unroot it and now I have to pay 250€ for repairs. Thank you.

  • shobhit gupta

    hey please help me, my s2 is bricked its not turning on , no downloading mode, no charging…..
    Please help me what to do ??

  • Muhammad

    The stock ICS ROM link to download is not working please help! :(

  • XdaUser

    The person who wrote this AND the people following these instructions are complete fucking idiots. You don’t simply follow instructions off some shitty blog site. Go to fucking XDA and read the guides thoroughly, everything is there. Google “xda forums.”

    Bunch of morons.

  • bryan

    i ve a gti9100p can u just help mi to root its urgent. thank

  • zubair

    dear max,
    im currently using carbon rom 4.3 on my samsung galaxy s2.can you please make a tutorial of how to unroot it back to ice cream sandwich.thankyou

  • zubair

    hey this methods works.thanks max.your awesome.

  • Augusto

    Dear boys,
    are struggling with a problem that I can not understand!
    I am in possession of a Samsung SII with Android 4.1.2 and would like to remove the privileges of a root system that is run in such a way that I can install Adaway (which requires precisely this condition) and remove the annoying advertisements!
    I state that the device is in recovery mode because I believe that you have installed in the various attempts, a room that is NOT Allows to me more when turned to go into download mode!
    How do I remove the system privileges?
    Thanks to those who will give me practical advice and easy-to-intuition
    Augusto 😉

  • darren

    Worked great, thanks so much for this!

  • Nightvave

    Hi,

    How to UNROOT from 4.1.2 to Stock ROM for i9100…. pls HELP

  • gaurav

    i m stuck in bootloop still getting problems which u gave solution and each timeits fails again again is thereany other method pls help me

  • Laurize

    the archive is an error each time i download the ics file. can you give an alternative link?

  • Gordon

    Hi Max,

    I wonder why I couldnt flash any stock S2 Rom with Odin…. I got fail everytime…and it seem stucks on the hidden.img file….I have tried to use the file you provided and have tried to use other region’s s2 stock rom…
    still fail…

    fortunately, I could use CWM to flash custom rom with no problem at all…

  • wenhao

    My s2 stuck in S logo
    but when I go in recovery mode
    it only show up the odin mode
    Pleasee helpp

  • wenhao

    My s2 stuck in S logo
    but when I go in recovery mode
    it only show up the odin mode
    Pleasee helppp!!!

  • wenhao

    My s2 got stuck in S logo
    when I go to recovery mode it only show up the odin mode
    pleasee helpp mee!!
    I cant access my phone

    • Rob

      Posted from Simon earlier———- Read through the posts!!

      After you’ve got the PASS message, the phone will probably get stuckat S logo. If it reboots fine without getting stuck at the S logo, then okay, you’re done, skip to next step. Otherwise, worry not and do this:
      1.Boot to recovery mode — for which, first power off phone and after screen goes off, wait for 5-6 seconds, and then press and hold Home + Volume Up + Power keys together. Once you are in recovery mode, use volume keys to move the selection up and down and power or home key to select the option.
      2.Go to Factory Reset and select it. Select Yes on next screen.
      3.Now, go to Wipe Cache and select it. Confirm Yes on next screen.
      4.Now, select reboot system now to boot your Galaxy S2. It will boot up fine. And you’ll have official Android 4.0, Ice Cream Sandwich, firmware on your Galaxy S2 i9100. Go to Settings and scroll down and select About Phone and check the info there.

  • Nay Albert-Felix

    Quick question. If I install this official rom to my Samsung Galaxy S2, can I install the official update of Jelly Bean after via Kies or phone ?

  • babu

    It helped me out in a better way but unfortunately my still not getting switch on and it keep on shoing S the symbol of samsung and how long can i wait please help me out from this issue

  • Alan

    It rebooted, but stuck at the shining S screen, keep shining, have been waited for more than 10 minutes. What can I do?

  • Daniel

    How could I increase the partition dedicated for the OS and apps?