This Rom Pre rooted
INSTRUCTIONS :
1. TWRP must be 3.0.0.2 Cuoco92 or 2.8.7.4 ….
2. Make backup of your present ROM
3. Now rename this file extension 6.0_VIBEUI_V3.1_1610_3.210.1_DEV_K50-T5#hackerpower@XDA.exe
to 6.0_VIBEUI_V3.1_1610_3.210.1_DEV_K50-T5#hackerpower@XDA.zip
4. Now unzip the Downloaded file and place it in /built- in SDcard/TWRP/BACKUPS/Lenovo_K50-T5/6.0_VIBEUI_V3.1_1610_3.210.1_DEV_K50-T5#hackerpower@XDA/ three [File]
5. Go into 3.0.0.2 Cuoco92 TWRP recovery Advance wipe system,data,dalvik,cache now select restore and select unzipped package and install…
6– Flash directly gapps with TWRP and click try to solve " wizard setup " and click on clear date and click on permission management and allow all apps.
7- Open ur app manager from setting and go to " google play store and play sotre " click on permission management and allow all apps
Enjoy
Credit to hackerpower@XDA