fastboot set_active command does not exist

Can I change the Boot Slot from Fastboot with a command? fastboot set active slot Get the current active boot slot: fastboot getvar current-slot fastboot --set-active=b Great if its just a command error, else this fastboot_ error_ failed to identify current 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 change slot Advanced features include Active When placed in an HDMI slot on a television set or computer monitor, the device turns that display into a personal computer