CM12.1S ROM for Galaxy S2 GT-i9100! [Android 5.1]

cm12.1s-rom-galaxys2-gti9100

Looking for a good Android 5.1 Lollipop ROM for your Galaxy S2 GT-i9100?

Check out the CM12.1S ROM, which is a hybrid of CM12S ROM from OnePlus One and latest Android 5.1.

This ROM features latest CyanogenMod CM12.1 Android 5.1 features along with OnePlus One camera, AudioFX, Screencast (screen recording app), and Hexo theme. I’ve tried many of the latest CM12.1 and Android 5.1/5.1.1 ROMs in the past week but found this ROM to be most stable with everything working out of the box except Netflix video playback.  Also, if you want to know about all of the latest CM12.1 ROM features, check out this video.

Overall, this is a fantastic Lollipop ROM for those of you who want to get your feet wet with Lollipop so definitely check it out this week(end).  I should have an update real soon though on a stable Android 5.1.1 custom ROM.

Download:

Download CM12.1S ROM for Galaxy S2 GT-i9100

Download Android 5.1 Gapps (DO NOT USE older Gapp as you will FC!!!)

 For installation, please follow How to Install Android Lollipop ROM on Galaxy S2!

To install, reboot into recovery, make backup ROM, wipe data/factory reset, install ROM, install Gapps, install SuperSU and reboot. (If for some reason you end up in a bootloop, reboot into recovery, go to Advanced Wipe for TWRP or Mounts & Storage for CWM, format/wipe /system, then re-install ROM.)

Credits – XDA <— Please donate to the developer of this ROM or hit Thanks button on XDA if you like it, thx!

Extra MODs:

Missing root?  See How to Enable Root on CM12.1!

Want Flash Player?  See How to Install Flash Player on Android Lollipop!

If you want some awesome audio, check out Viper4Audio FX MOD, which you can install on this ROM to enhance your music 100%.

If you want to run your apps in tablet/hybrid/custom DPI mode, see our Xposed App Settings guide.

Need to run apps that check for root?  Check out How to Run Apps that’s don’t run on rooted Android!

If you want PIE Controls, see our LMT Pie Control guide.

Q&A:

Q: My 3G/4G LTE data is not working!!!
A: See How to Fix 3G/4G LTE data by Manually Setting APN on Android!

Q: I have no Play Store!
A: Make sure you install Gapps zip file in TWRP or CWM Recovery!!!  Download link in this post above.

Q: I have no Root!
A: For CM12.1 ROMs, see How to Enable Root on CM12.1!

Have a question?

This is an OLD website where we no longer support and we are moving all our new tutorials to our new forum where you can ask questions about any Android device. Please post all your questions at the new Android Rehab Center at HighOnAndroid Forum, thank you for understanding!

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