About CM12.1 SGS2 Boost
This apk contains a kernel for i9100,Galaxy S2 CM12.1 android 5.1(cyanogenmod.com), not compatible with any other firmware.
The kernel is modified according to CPU,audio spec.It makes S2 faster, louder, especially in hand free mode.
Make sure CM12.1 is installed.
Kernel source locate at sf.net for GPL license.
intsall from stock firmware:
Backup every data before install...
root i9100 -> install cwm recovery -> install cm12.1(wipe out cache,data) -> install gapps (or use "adb install..." to install this apk)-> install this apk
Install cm12.1 :
http://www.ibtimes.co.uk/galaxy-s2-gets-android-5-1-1-lollipop-via-unofficial-cm12-1-rom-how-install-1499734
Use odin:
http://www.youtube.com/watch?v=lxwHr-VODiw
Recovery method:
Let S2 enter download mode(press power, volume down, home).
Use Odin to download official firmware.
After download, enter recovery mode(press power, volume up,home) and wipe out /cache,user data. This apk contains a kernel for i9100, Galaxy S2 CM12.1 android 5.1 (cyanogenmod.com), not compatible with any other firmware.
The kernel is modified according to CPU, audio spec.It makes S2 faster, louder, especially in hand free mode.
Make sure CM12.1 is installed.
Kernel source locate at sf.net for GPL license.
intsall from stock firmware:
Backup every data before install ...
root i9100 -> install cwm recovery -> install cm12.1 (wipe out cache, data) -> install gapps (or use "adb install ..." to install this apk) -> install this apk
Install cm12.1:
http://www.ibtimes.co.uk/galaxy-s2-gets-android-5-1-1-lollipop-via-unofficial-cm12-1-rom-how-install-1499734
Use odin:
http://www.youtube.com/watch?v=lxwHr-VODiw
Recovery method:
Let S2 enter download mode (press power, volume down, home).
Use Odin to download official firmware.
After download, enter recovery mode (press power, volume up, home) and wipe out / cache, user data.