Run fastboot devices to confirm your phone is detected.
: Start over from step 1. Also flash vbmeta : fastboot wipe-super super-empty.img
:
: Many ROM zips automatically handle super partition resizing. Run fastboot devices to confirm your phone is detected
: Unlock your bootloader. This may wipe your data and void warranty. fastboot wipe-super super-empty.img
You must use a super-empty.img specifically created for your device model and the specific ROM version you intend to flash. Using the wrong image can lead to a hard brick.