Samsung Galaxy S II (GT-I9100)

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Automatic method

Support in OmniInstaller: Unknown

Manual method

Installing the Recovery

At least CWM version 6.0.4.4 or TWRP version 2.6.1 is required.

On a non-rooted i9100

To start with, you can find various methods to flash a CWM based kernel and root you phone here: http://forum.xda-developers.com/showthread.php?t=1877270

Once you have a rooted phone with recovery, move on to the next section (backup before you flash).

On a rooted i9100

In case you have rooted phone with recovery, ensure that you have a compatible kernel :

  • Download a compatible kernel (Omni 4.4 CWM/TWRP): [Click here]
  • Flash with at least CWM version 6.0.4.4 or TWRP version 2.6.1 (otherwise you will lose recovery)

Flashing the ROM

Now your phone should be ready to flash Omni.

  • Download latest 4.4 compatible GApps package (choose Core/Mini): [Click here]
  • Download SuperSU for root: [Click here]
  • Copy the downloaded firmware and files to your phone, also remember to copy any backups from the phone if required and unplug the USB cable once done.
  • Power off your phone and then boot into recovery by pressing Volume Up, Home and Power at the same time for about 10 seconds.
  • Do a factory reset (wipe data + cache + dalvik cache).
  • In recovery, install Omni ZIP followed by GApps and SuperSU.
  • Once the installation is done, wipe cache again.
  • Once cache wipe is completed, reboot to system.

Known Issues / Limitations

  • OTA updates may stall, this is due to a SD fuse daemon bug in KitKat. Try keeping the phone from turning off the screen during the update process.
  • Swipe gestures do not work on AOSP keyboard. Try wiping cache again or install Google keyboard.
  • The default file manager (DocumentsUI) does not open APK files even if installation is allowed from unknown sources. Workaround: Install another file manager.