Depending on your technical comfort level, you might choose one of these paths: What is Google FRP? | Samsung New Zealand
The landscape of mobile security is a constant tug-of-war between manufacturers and the developer community. When Google introduced Factory Reset Protection (FRP) with Android 5.1, it was designed to prevent unauthorized access to a device after a factory reset, essentially turning a stolen phone into a "brick." However, this security measure also poses significant challenges for legitimate owners who lose access to their credentials or for developers working in the secondary "cell" market. Technical Components: GSM and FRP
To avoid needing these specialized "dev" apps, it is critical to disable the lock properly before a factory reset: