1.Download The recovery.img file provided in rom post.
2.Paste the recovery file in adb folder of your laptop/pc.
3.Hold Shift key and right click on mouse then select open powershell or command prompt here
4.Turn off your phone then hold power+volume down buttons until fastboot mode opens up
5.Then connect phone to pc and type
./fastboot devices or fastboot devices and press enter
6.Then type
./fastboot flash recovery recovery.img and press enter7.Then using volume down key navigate to recovery mode In fastboot and press power button to go to recovery
8.Select apply update in recovery u can use adb sideload or use sd card for flashing
9.ADB Sideload -
Copy rom zip In adb folder and copy file name of the rom zip , select adb option in recovery on phone and then on pc type
./adb sideload romfilename.zipSD CARD - If u want to flash file from sd card just select sd card and navigate to rom file and Install it
10. Now go back and select format data option and format your device
Reboot finally
