If you guys are not able to access bootloader on amdroid 12 or android 13 ..Follow my guides it works 100% since i have unlocked bootloader and rooted too by magisk
If you are on android 12 then update to android 13 which has been rooled out
If you are on android 13 follow my next step
*NOTE : One who is facing fastboot issue to unlock bootloader or rooting on android 12 and 13 they must have to be on android 13 so try updating your phone by following First step
If you have done updating to android 13 then download this android 11 downgrade file..
once you have done downloading , paste on internal storage not in any folder .
Remove _rolback from file name if you face verification failed in next step .
Now install it from local install by going to about phone
Now install it And your phone will be downgrading to android 11 which will wipe your all data
Once downgraded setup your phone and off system update from developer option
*Now you can access bootloader and root you phone by magisk ..No need to install twrp for rooting .
This method can be applied to all OnePlus mediatek device which has same issue
*If you want to root from magisk or unlock bootloader dm me [email protected]
Credit : Neil Comrade ( sachin)