How To Guide - How to manually switch the active slot

How To Guide - How to manually switch the active slot fastboot get active slot being installed to the opposite partition than you're currently on So active and you can fastboot set active slot But I want without fastboot command My usecase is the bootloader need to check the currect active slot and set the proper suffix How can I do

fastboot set active slot Android phones can now have an A and a B partition system for the OS and we can use this fastboot command to check and see which slot is currently active

fastboot_ error_ failed to identify current slot 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 Android phones can now have an A and a B partition system for the OS and we can use this fastboot command to check and see which slot is currently active