: Click "Start" on the loader tool, then power on the receiver. The tool should detect the "handshake" and begin the progress bar.
: Supports communication via RS232 (DB9) or USB-to-TTL adapters. Download GX6621 1TUNER 16MB Loader Tool rar
: Open the loader tool and select the correct COM Port . : Click "Start" on the loader tool, then
: Click "Open" or "Browse" to select the GX6621 16MB firmware file you wish to flash. Download GX6621 1TUNER 16MB Loader Tool rar
Your PC has a stable power supply to avoid interruptions during the write process, which can permanently damage the flash memory.
: Specifically handles .bin firmware files for 16MB flash chips. How to Use the Loader Tool