यह apk CM12.1 GT-I9500 के लिए बनाया गया है।"आप अपने खुद के जोखिम पर कर रहे हैं"

This apk contains a kernel for i9500,Galaxy S4 CM12 android 5.1.1(cyanogenmod.org), not compatible with any other firmware.

"You are on your own risk."

The kernel is modified according to spec.

In summary, after install this kernel, S4 will be faster, louder(especially in hand free mode).

Kernel source locate at sf.net for GPL license.

root:

http://autoroot.chainfire.eu/

Install cm12:

http://galaxys4root.com/t-mobile-galaxy-s4-roms/cm12-1-android-5-1-1-rom-root-for-galaxy-s4/

recovery rom:

http://forum.xda-developers.com/showthread.php?t=2644009

Use odin:

http://www.youtube.com/watch?v=lxwHr-VODiw

Recovery method:

Let S4 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.