Using SAMFW Tool to remove FRP is on devices you own. However, using it to unlock lost/stolen phones is illegal in most countries (Computer Fraud and Abuse Act in the US, similar laws in the EU).
FRP (Factory Reset Protection) is a security feature introduced by Google to prevent unauthorized access to Android devices. When FRP is enabled, it requires users to enter their Google account credentials to reset their device or access it after a factory reset. samfw tool 471 remove samsung frp one click descargar