While "exclusive" methods can rescue a device if you've forgotten your own credentials, they are often used at "your own risk" (especially BETA versions of software) and may not be permanent on newer Android versions. Furthermore, performing an FRP bypass on a device that is not your own may be illegal in many jurisdictions.
Downloading specific APK files (like ) to gain entry into the device settings to add a new Google account. Popular Devices Affected allwinner a133 frp exclusive