How to change the current active partition slot?

zip package flashall: Flash all partitions from $ANDROID_PRODUCT_OUT On AB devices, flashed slot is set as active Secondary images may be

fastboot blob: 5f2267c6330143c32796851946c378fea9868919 Sets the active slot If no slot isn

fastboot getvar currentslot If it is a slotted device in Fastboot run the command: fastboot getvar current-slot and then set the active slot, fastboot --set-active=

fastboot get active slot try setting the slots again, without the space between -- It will return fastboot --set-active:a fastboot: unknown option – set-active:a