CyanogenMod is a free, community built, aftermarket firmware distribution of Android 5.0 (LOLLIPOP), which is designed to increase performance and reliability over stock Android for your device.
What works:
Display
Vibration
GPS
Sensors of All type
Google Apps
Bluetooth
Bluetooth tethering
All native apps
GPS
WiFi
Sdcard
Camera
What doesn't work:
OMX
NFC
Partially Working Features:
RIL
audio
Sceenshots
Install instructions:
Flash the updated TWRP 2.8.6.0 Recovery
Wipe all partitions except sd card!
Format everything other then Sd card (Full format is must needed when you flash cm12.1 1st time)
Flash the rom
Reboot
Done!
After first boot reboot back to recovery
Flash Gapps
Download
Rom:
https://www.androidfilehost.com/?fid=24052804347824186
Gapps:
https://www.androidfilehost.com/?fid=24052804347823660