1). boot 2). vendor_boot
Flashing Recovery through ADB:
- fastboot flash boot boot.img
- fastboot flash vendor_boot vendor_boot.img
- fastboot reboot recovery
Flashing ROM:
- Select Apply Update
- Apply Update from SD Card or OTG
- Select rom and flash it
- reboot to recovery again
- Apply Update from SD Card or OTG
- format data(if you make it dirty flash skip this step)
- reboot to system
- Enjoy
Or
- Select Apply Update
- Apply Update from ADB
- Connect your phone to PC
- adb sideload rom.zip
- reboot to recovery again
- format data
- reboot to system
- Enjoy