FP4 - Stuck in fastboot mode - relock the bootloader

fastboot set active slot   Dan fastboot getvar currentslot

Fastboot commands ; set_active slot> Sets the given AB booting slot as active On the next boot attempt, the system boots from the specified slot For AB

Open a Command Prompt, Terminal, or Powershell and then type the following command – fastboot --set-active=a or fastboot --set-active=b  fastboot getvar current-slot current-slot: b Finished Total time: fastboot --set-active=b Setting current slot to 'b' OKAY

mighty masks slot fastboot commands :- https How to Check and Change Current Active Slot on Android 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