fastboot commands

being installed to the opposite partition than you're currently on So active and you can

I guess your bootloader is unlocked? Did you try to change the active slot? Get the current active boot slot: fastboot getvar current-slot

fastboot getvar currentslot It means fastboot is waiting for a phone to be connected If the phone is physically connected but fastboot cannot find it, then either the

fastboot_ error_ failed to identify current slot 查詢目前使用那個槽， 看目前的slot是a還是b，一般都是a。1$ sudo fastboot getvar current-slot 參考 adb