F3503022019.7z -

: You will need a high-quality SD card (usually 16GB or 32GB).

If you are attempting to fix a "reboot loop" or update your vehicle's head unit, follow this general guide: F3503022019.7z

Follow the on-screen prompts to begin the "System Update" or "Software Reinstallation." : You will need a high-quality SD card

: Ensure your car battery is healthy or connected to a charger. If the power cuts during a firmware write, the head unit may be permanently "bricked." F3503022019.7z