You will need a CH341A Programmer or a similar RT809F/H programmer tool to flash this file directly onto the SPI Flash IC (usually an 8-pin chip like the 25Q32 or 25Q64).
Always back up your original firmware before erasing the chip. Download S506 PB818 Starlight 32E31S Dump rar
Flashing firmware is done at your own risk. Ensure the board number TP.S506.PB818 matches your hardware exactly to avoid permanent damage. You will need a CH341A Programmer or a