FP4 - Stuck in fastboot mode - relock the bootloader

fastboot — android-tools fastboot set active slot slots ourselves using a Fastboot command Changing Android's Active Partition Slot fastboot get active slot try setting the slots again, without the space between -- It will return fastboot --set-active:a fastboot: unknown option – set-active:a

fastboot getvar currentslot 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