Factory Reset Protection (FRP) is a built-in security feature on Android devices running version 5.1 and higher. While it effectively prevents unauthorized access to a lost or stolen phone, it can become a major headache for legitimate owners. If you factory reset your device but forgot your Google account credentials, you will find yourself locked out.
Reinstall the official Samsung USB driver package and change ports. Regional carrier blocking or newer security patch Factory Reset Protection (FRP) is a built-in security