Command failed fastboot: error: Device does not support slots

To enter fastbootd mode, bootloader writes boot-fastboot into the command field of the BCB message and leaves the recovery field of BCB unchanged (to enable

As @aibd linked to, in fastboot mode you can run fastboot getvar current-slot to find out But if you specify the partition with _a or _b at

fastboot change slot When there is a problem with the SATA Port, BIOS may fail to detect the SSD 2 slot but does not support NVMe, is it due to hardware or

fastboot getvar currentslot Trying to flash a brand new Pixel 3 , but something looks wrong Some error messages and apparently stuck in fastboot