A20s Firehose Loader Better _best_

Samsung implements strict Rollback Protection (ARB). Ensure the firmware elements you are interacting with match the security binary version currently installed on the device (e.g., Bit 1, Bit 2, Bit 3, etc.).

: A user attempts to flash a custom ROM or bypass a Google Lock (FRP), but the phone dies. It won't turn on, only showing up as "Qualcomm HS-USB QDLoader 9008" when plugged into a PC. a20s firehose loader better

Are you trying to a dead device or simply perform an FRP bypass ? Samsung implements strict Rollback Protection (ARB)