How to change Android system boot slot form A to B

So i decided to flash twrp into a boot slot via fastboot then, i set the active-slot to that but then I still don't get twrp idk why Now, I can get into

How to change Android system boot slot form A to B If you device randomly got stuck in fastboot after a reboot, that means the counter hit zero and the bootloader marked your slot as unbootable

So i decided to flash twrp into a boot slot via fastboot then, i set the active-slot to that but then I still don't get twrp idk why Now, I can get into

fastboot get active slot This command provides information about the active slot from which the device is currently booting user $ fastboot getvar current-slot Dump

active The Power H922 server supports a maximum of 32 DDR4 fast boot times and is ideally suited to contain the rootvg of Virtual IO

fastboot getvar currentslot 1 Switching the slot using fastboot Switching the slot via fastboot works if TWRP is installed in the boot partition · 2 Switching the 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