Confirm that your serial cable drivers are correctly installed in Windows Device Manager.
: The device may not be in the correct mode to accept serial commands. For many devices, specific pins (like
How to dead Gsky V8 revival with a computer using rs232 cable
: Using an incorrect COM port in the flashing software or having outdated/corrupt drivers for the RS232/USB-to-TTL adapter.
: Sometimes security software blocks serial port communication; try disabling it during the flash.
: Verify the port number in Windows Device Manager and match it in the tool.
Confirm that your serial cable drivers are correctly installed in Windows Device Manager.
: The device may not be in the correct mode to accept serial commands. For many devices, specific pins (like
How to dead Gsky V8 revival with a computer using rs232 cable
: Using an incorrect COM port in the flashing software or having outdated/corrupt drivers for the RS232/USB-to-TTL adapter.
: Sometimes security software blocks serial port communication; try disabling it during the flash.
: Verify the port number in Windows Device Manager and match it in the tool.