F3503022019.7z May 2026

: Move the extracted files directly to the root directory of the SD card (not inside a folder). Installation : Turn your vehicle's ignition to ACC or On . Insert the SD card into the vehicle's map/data slot.

: 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

: You will need a high-quality SD card (usually 16GB or 32GB). : Move the extracted files directly to the