| Problem | Possible Cause | Potential Solution | | :--- | :--- | :--- | | | USB drive not formatted to FAT32, or is too large (>32GB). | Reformat the drive as FAT32. Try a different, smaller USB 2.0 drive (4GB-8GB). | | Black Screen After Logo | Incompatible or corrupt firmware installed. | This is a common "soft brick." You will need to attempt a forced recovery using a different, verified firmware image. | | Update Stops or Freezes | Corrupt firmware file or bad USB drive. | Power off the device. Re-download the firmware file. Use a different USB drive and repeat the update process. | | Device Fails to Boot | Severe firmware corruption ("hard brick"). | You may need to use a serial TTL (UART) adapter to connect to the device's internal debug console and manually flash the bootloader. This is a complex, advanced procedure. |