The is a critical software-flashing blocker that specifically occurs when a user tries to cross-flash or change the original regional/carrier firmware variant on an LG Android smartphone using the LGUP Tool . The system throws this code because the OPID (Operator ID) embedded within your downloaded KDZ firmware file does not match the hardcoded hardware region identifier on your device.

What you are using (e.g., LG V60, G8, Wing)

Uninstall all previous LG Mobile Drivers and LGUP tools from your Windows Control Panel. Restart your computer.