Always back up your original dump file if possible. Flashing firmware is done at your own risk.
Once the handshake is established, the user loads the firmware file into the tool's buffer. The tool transmits the data in packets. The bootloader on the chip receives these packets and writes them to the SPI Flash memory soldered onto the board. sunplus loader tool
Using the Sunplus Loader requires a physical hardware connection between your PC and the receiver: : A serial cable (often DB9) to transmit data. Always back up your original dump file if possible