How to install TWRP

1. Download twrp file first

2. backup your data (if you want to, your choice)

3. in your pc do these below commands

fastboot flash boot twrp.img

fastboot boot twrp.img

here you get error in command prompt dont worry

4. now it will boot to twrp

5. click format » DATA » yes

6. reboot to recovery again

7. now go to file manager and go to data folder here open terminal type below command

8. mkdir /data/media/

9. reboot your device to TWRP

10. goto advanced and then click flash current twrp

11. you successfully flashed twrp