If you receive a "Device: 3, Binary: 2" error on your phone screen during the flash, it means your device has been updated to . Due to Samsung’s security roll-back prevention (ARB), you cannot downgrade a device to a binary level lower than the one currently installed.
Downgrading involves a factory reset. Back up all photos, contacts, and messages. If you receive a "Device: 3, Binary: 2"
Go to Settings > About Phone > Software Info. Tap "Build Number" 7 times. Then, go to Developer Options and enable OEM Unlock and USB Debugging . If you receive a "Device: 3