How to Fix Fastboot OEM Unlock Waiting for any device

How to Fix Fastboot OEM Unlock Waiting for any device fastboot set active slot I was able to fix this with fastboot --set-active=a followed immediately by fastboot flash boot and all the other partitions fastboot set active slot Display a bootloader variable fastboot set_active suffix: Sets the active slot If slots are not supported, this does nothing fastboot boot

fastboot set active slot If this flag is not used, slotted partitions will default to the current active slot -a, --set-active Sets the active slot If no slot

fastboot_ error_ failed to identify current slot I had to install Android 9 on both (You can check the active slot with fastboot getvar current-slot , and select a slot with fastboot --set Then change slot a to b or b to a if phone already slot a first set-active=a or b Bootloader