How to Make a USB Jig for your Galaxy S2!

If you’ve hard bricked your Galaxy S2 (and can’t get into download mode) or you want to reset the ODIN download counter (so no one will no you’ve rooted your Galaxy S2), or you just simply
want to remove the i9100 splash screen, you can make a USB jig to solve all your problems.

What is a USB jig?

USB jig is a simple circuit that allows you to reset the download mode and also get into it for Samsung smartphones (can work on other Samsung phones besides the Galaxy S2) just in case something goes wrong.  On a hard brick, this can save your phone as it will enter into download mode.  Think of it as a reset switch.

You can buy a USB jig on Amazon for around $6-10 or for about $2, you can make your own.  It’s a really simple circuit that involves putting 300K Ohms of resistors between pin 4 and 5 of the microUSB connector.

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  • jeff

    how come the tmo gs2 doesnt require this jig. i mean dont u flash the same stuff

  • pranjay

    why does the phone get bricked?????what does it mean

  • Maxim

    Did you check if such USB Jug would work on a hard bricked T-Mobile Samsung Galaxy S II SGH-T989? You don’ specifically mention T989 and leave some hope, yet on the JTAG experts’ site it says that their service is not for SGH-T989.

    Just don’t want to let my hopes high, during the time till I get to shop for the resistors 😉

    Thanks a lot!

    • mick

      keep me updated please , im in the same boat. bricked my tmobile galaxy 2

      • jimbobpro

        it worked on my partners completely bricked galaxy s1 how did u go??

  • Maxim

    I ended up buying and industrially made usb jig, it did not work. I checked it on another, ricked, but not hard bricked, phone – jig worked like a charm.

  • Fernando

    Wich android version you make -it?

  • Alex

    Hi

    I have a question, I have a Galaxy S2 i777 At&t, and I’m using a custom rom, “ICScrewD” and I wanna as if its possible to reset the the product name from GT-i9100 to SGH-i777 in the ODIN MODE? I’ve used the jig but still says i9100..

  • ashhad

    followed your procedure… worked like a charm… Thanks man
    one thing was little different… my USB connector pins order was little changed… from inside, they were all in a straight line.. strange..
    anyways.. i manually used tester to figure our pin 4 and pin 5.

    • Rob

      How do you test it with a multitester? Because I don’t know how to do it. Thanks!

  • manish

    :)
    made the jig in 10min and cost me 15rs totally :)
    TY

  • Jerky

    My options are 100k ohm at 1/4w and 1/2 watt. Which resistor should I buy? Does it matter?

  • Ayman Aleskafi

    Dear Max,

    it’s kind of weird but this is really happened to me I did the jig following your instructions and guess what ?

    it goes to the “Factory Mode” instead than ” Odin Mode” without resetting the counter ?

    I test it on my brother galaxy and it worked also on another galaxy of my friend and it worked fine as well?

    could you please advice ?

    I can provide a picture if you would

    Regards

  • benblanco

    Hey mate,
    My Samsung 2 has spontaneously hard bricked itself in my pocket.
    Does this type of jig mean I can recovery some of the data on it or is it f#cked?
    Just want my photos back.

    • Hal Motley

      @BenBlanco:

      The jig is designed to allow your phone to enter a special download mode (similar to ODIN mode) called Factory mode.

      From there it should (under older firmware) remove the yellow triangle and reset your custom binary counter. (Mine didn’t so I bravely used TriangleAway to remove it)

      But I assume you can also use the Factory mode to flash ROMs (with ODIN or Heimdall) such as the stock ROM, CyanogenMod and MIUI which would effectively get rid of your bricking. Interestingly though after flashing to the stock I couldn’t get CM7 back on, so I now stick with CM9 (despite the fact it’s a nightly with things missing and plenty of bugs).

      Hope I helped!

  • Raxor

    Thank you… thank you very much, you saved my ass, helped me unbrick my phone, for some reason It’s not reset the custom ROM count, but that’s not as important, great instructional mate, FANTASTIC :)

    Cheers :)

  • littlecrazywolf

    ive got my usb jig today and tried it out, but it dont work on mine, is it maybe that i have ice 4.0.3 and it only works on gingerbread????

  • littlecrazywolf

    i mean the counter reset

  • bricked

    I just made this jig for my hard bricked sgh-t989 and it is a NO go! it did not work at all, please advice.

  • fernando

    This usb jig works very well. I was able to unbrick my galaxy s2-g.
    Thanks a lot.

  • Loki

    You may find it easier to keep some of the cable attached to the plug, and using a multimeter test through to identify which core relates to which pin. After that, you can then solder your resistor/s between the cabling, and make it a nice in-line jig with a tail. For extra neatness and robustness, wrap the finished end in LX tape!

  • Schlorg

    Weird, i can enter factory mode with my jig, but it wont erase the download counter…

    Anyone else having this issue?

    • Luis

      ok.. I used USB JIG to unbrick my t-mobile samsung galaxy s2 , that is complete bricked ,phone not
      turn on nothing work…So USB JIG not work for this model sorry guys , only the repair way for this t-mobile phone is JTAG, but is little hard .

    • admin

      You can use Triangle Away app.

      • neal

        Mine i777 does same thing, goes into factory mode, and/or download mode, but does not reset the counter.

  • Mido

    hi …thank you so much about that ..but i want ask you plz ..i installed program cwm recovery to my galaxy ace and i turned and was work very good after 1st restart my phone dead not allow to open or do anything plz tell me is usb jig can back life to it

    • Max

      does it turn on at all? usb jig might work dunno until u try.

  • Aiman

    Well what do you know. I got a soldering iron, probably some thin wire and a micro USB cable sitting around somewhere, those same exact resistors from radio shack I bought a while back, and a new Epic 4G Touch with 1 Odin count that I need to take to Sprint.

  • himeyhwa

    i have biricked my galaxy mini TT,TT because i use rom manager apk.. i dont know if that apk isnt compotible for galaxy mini.. n when i turn off my phone.. n i want turn on again my phone not on anymore :( can u help me?? what should i do?? TT,TT

  • Leo

    Hi, thanks for sharing the info. Why soldering cables on the USB connector rather than mapping the wires (wire color pin number) and soldering the resistor to the original wires?

    • Max

      Good question this is because one of the pins do not have physical connection to the actual wires.

    • Root HydroLife

      Because it has no wire on pin 4. Watch tutorial and read info again. Google is a great resource, ask google XP. Hard bricked is when nothing will ever fix the device. Soft brick is basic boot loop error. Take out the battery if not fused to device. That requires re-soldering and technical know how. Or hold power and a volume key up or down depending on device and reboot through the menu by pressing volume keys and power. Read specific directions on your device. Reading, an amazing concept. Most hard bricked devices are because of a lack of reading. If it says WAIT TILL READY. do it!!!! Wait till the device is ready or don’t try to be weekend hackers without devices you are willing to destroy if you don’t read directions well. To fix a device not booting or charging. Replace the battery or if needed, manually drain it out of the device using a simple led light to show it runs a charge. When fully dead, put it in your device and charge fully. If this does not fix it, I would assume the USB port is busted. Again, GOOGLE is your best friend. Hit him up and READ.

      PIN 4 TO PIN 5 CONNECTION WITH RESISTOR

  • DGH

    Hi, I have a Samsung Galaxy S2 (GT-i9100).

    I built the jig just like you mentioned here.
    It resets the phone, takes it to download mode, but it doesn’t reset the custom binary count or get rid of the yellow triangle.

    Any help please.

  • Dani

    I have 330K resistor (because i could not find 300k or 100k Resistors in the shop) n would like to know that if I try that resistor, will it do any damage to my phone?
    My phone is hard bricked!!!
    Thanks……

  • Dani

    Will the resistor with different colour code work or the only mentioned in XDA brown,black,yellow gold works?

  • rakeeb

    ma s2 GT-9100 still not booting up… its showing yellow triangle i tired 320k homes usb jig its any problem plz…. help me any one plzz………

  • Hawk

    Since all you are doing is pulling D+ to ground… the specific value is irrelevant! Where did you get 300K? It doesn’t matter! You can use 100k, 50k, 10k, even 1k.

  • MAC

    Hi Zedo,

    Love the tutorials. Great website. too me from a noob to a competent android user.
    have some trouble. phone was stuck in bootloop. tried to reflash with recovery.tried with odin.now phone cant go into recovery.
    was running rootbox JB Rom with Dorimnanx kernal 7.xx on I9100. tried flashing other kernals and stock roms but doesnt work. made 2 usb jigs. phone goes into “factory mode” but doesnt clear the counter. any other ways of clearing the counter to save my warranty?
    appreciate the assistance

  • Jim

    Saved my Samsung Galaxy S9000

    Thanks, Jim

  • Toha

    Probably not the best forum but I need to ask as I am going crazy and not finding answer.
    USB memory stick via OTG cable work perfect on my SGS2 (stok android 4.0.4) or LG 2X CM7.2.
    But on Nexus 7 it only works with Nexus media import (only to read files), I have been reading root need for apps like stickmount but why when all working as normal android function on SGS2 as example?
    I dont want to root my Nexus 7…….

  • Elias

    I followed the instructions and it works perfectly. I did on my SGS I9100 from Europe. Thank you and good luck.

  • rusty

    max i am glad you use your powers for good. But wat is the difference between a brick and a hard brick. Brilliant forum BTW

  • Michael Sta Maria

    What is the difference between Bricked and Hard Bricked Phone????

  • swivelzz

    Hallo, is this work for epic touch 4g a.k.a sph-d710? (GB27 stock rooted)
    If u don’t mind, post more detail on pin 4 and 5, can’t see it clearly :'(

    Regard’s
    Swivelzz – D710

  • shah

    how to make jig usb for galaxy tab p6200?’.

  • Ralph

    I would like to ask a stupid question… The wired are already soldered in place, Why cut open the mini USB ? Just know which color wires go to the right pin and solder the resistor onto the right colored wires. It just seems a waste to cut wires that already work ?

  • Jonathan

    one question, can i use this to boot my phone? my phone is completely dead, not turning on, ive even replace the battery, i also connect the phone to pc and doesnt detect the device, tried volume up/down + home + power still not comming up, i wonder if this could fix the problem?.. thanks in advance

  • Zahid

    my sony ericsson xperia x8 hard bricked while installing custom rom
    and it is completely dead no charging no led
    can this solution help me to repair my phone,
    please help !!

  • Rick Ramo

    Thanks Max, that was interesting. Ever since I hardwired some ram chips piggyback onto existing ram in an Atari 400 I have been fascinated with this crap.

    I am still using a loyal SGH-i727.

  • Ikyak Zaboenk

    Great article,
    my GT-I9100 stuck during downloading PIT file, so i decided to disconnect the USB, and suddenly it’s only blank screen, can’t enter both downloading mode (Home+vol down+power) or recovery mode (Home+vol up+power).
    will it solve the problem?