How to change Android system boot slot form A to B

How to change Android system boot slot form A to B fastboot set active slot slot amazing just goes to show sometimes it's the part u Then Mark the selected partition as active simply by typing active fastboot getvar currentslot You can switch slots with ADB and this command: fastboot --set-active=b assuming you bricked slot A I also need help fixing my slot A and rooting my phone

fastboot getvar currentslot Super Partition Dynamic Partition A & AB Slots Fastboot Detailed Guide munchy•55K

fastboot_ error_ failed to identify current slot I was able to fix this with fastboot --set-active=a followed immediately by fastboot flash boot and all the other partitions  This command provides information about the active slot from which the device is currently booting user $ fastboot getvar current-slot Dump