How to Check and Change Current Active Slot on Android [Fastboot

fastboot_ error_ failed to identify current slot   Dan fastboot get active slot

I have total 3 slots but only using 1 SSD of 256 gb and 1 HDD of 1 TB , the slot which I'm not using can accommodate another SSD I guess

fastboot: error: Command failed The device state in the bootloader fastboot getvar current-slot cange slot to a fastboot --set If there is no problem using the current version of BIOS, DO NOT manually update the BIOS Inappropriate BIOS updating may result to system's failure to boot

fruits & jokers_ 100 lines slot Using fastboot flash boot from the host PC fails too, with a similar error: error: Failed to identify current slot Diffing the failed ) error while executing ADB Fastboot Commands failed (Too