FP4 - Stuck in fastboot mode - relock the bootloader

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

fastboot get 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 Open a Command Prompt, Terminal, or Powershell and then type the following command – fastboot --set-active=a or fastboot --set-active=b