Note : this TWRP backup , pre-rooted and also gapps
Install instructions
- Use custom recovery TWRP ( All Version Working )
- Now unzip the Downloaded file and place it in /built- in SDcard/TWRP/BACKUPS/Lenovo_K3_Note/2016-03-25–11-45-55_VIBEUI_V3.5_1613_7.17.1_DEV_K50-T5/ three [File]
- Go into TWRP recovery Advance wipe ( button blue ) & select partitions , dalvik cache, system , cache , user data ( just first user data )
- Select restore and select unzipped package and install…
- Install success
- Reboot system
Crédit to xda-developers
source