fastboot set_active command does not exist

If you are looking to get this job done via Fastboot Commands, then Slots

It means fastboot is waiting for a phone to be connected If the phone is physically connected but fastboot cannot find it, then either the

fastboot get active slot Fastboot commands ; getvar super-partition-name, Returns the name of the super partition The name includes the current slot suffix if the super partition is an

fastboot change slot If you are looking to get this job done via Fastboot Commands, then Slots