Switch to a different USB port, preferably on the back of the motherboard if using a PC. Reinstall VCOM Drivers
If none of the above works, the firmware you’re trying to flash is and your device is rejecting it. Possible next steps: sp flash tool 480
While less common for this specific error code, unstable drivers can sometimes cause data corruption during the initial handshake. How to Fix SP Flash Tool Error 480 1. Verify Your Firmware Version Switch to a different USB port, preferably on