How to change Android system boot slot form A to B

It can be very useful to know if partition slot A or slot B is currently active and you can learn

I was able to fix this with fastboot --set-active=a followed immediately by fastboot flash boot and all the other partitions

fastboot getvar currentslot Fastboot firmware, ZIP firmware is official from Xiaomi EU ROM, TWRP and Card slot microSDXC Internal 64GB 4GB RAM, 64GB 6GB RAM

fastboot change slot On AB devices, flashed slot is set as active Secondary images may be flashed to inactive slot flash PARTITION Flash given partition, using the