Turn on the device and connect it to a stable . Navigate back to the initial Welcome screen.

: Reviewers note it is a solid choice for professional or power users dealing with challenging FRP situations.

Try the first: Attempt to set a new Pattern or PIN. If it accepts the new lock, restart the phone and use that PIN to bypass the Google check. The "Backup and Restore" Method (If Lock fails) :

Getting a Google ID for Factory Reset Protection (FRP) - Esper Help