The "Backup Dump" you are looking for is a complete or .rar image of the board's flash memory chip, typically used to recover a TV that is "bricked," stuck on a logo, or showing a blank screen due to corrupted software. Key Technical Details Mainboard Model: TP.S506.PB801 TV Model: ROXON RX40D16 (typically a 40-inch LED TV)
Used for hardware-level flashing when standard USB updates are not possible. How to Use the Backup Dump
Always read and save your current (even if corrupted) firmware before writing the new one.