This is a build at a really early stage so take care !
Ok, so the method I propose is absolutely non intrusive. You might want to flash the recoveryyou'll find here-under but I personally haven't done it so feel free to go first Flashing back the original recovery shouldn't be a big deal anyway.
Prerequisite
You should have installed:
Rooting
So the method is pretty easy:
- Download the latest SuperSU update.zip and put it at the root of your Internal SD Card
- (Optional) Download Google Apps for Android 4.2.2 (thanks to TeamAndroid) and put it at the root of your Internal SD Card
- Download the recovery.img
- un-7zip it
- Restart your device in the bootloader:Code:
adb reboot-bootloader
- Boot your phone into the ClockworkMod recovery:Code:
fastboot boot cwm_recovery_custom.img
- Install zip, wipe partition, backup/restore, adb sideload, ...
- Reboot
The phone is left untouched except for the zip you flashed.
For those who would be stuck on K910_SS_S_2_040_0039_131101, I posted the official update.zip here