How to automate slot selection after android AB-Update

Checking Android's Currently Active Partition Slot fastboot set active slot First you need the actual fastboot, 3 Then the correct command is: fastboot --set-active=a fastboot get active slot Open a Command Prompt, Terminal, or Powershell and then type the following command – fastboot --set-active=a or fastboot --set-active=b

fastboot_ error_ failed to identify current slot --slot SLOT Override the default behavior and prompt fastboot to flash the slot that is passed in as an argument · --set-active Set