Use Google Find My Device to erase the phone remotely
Use Samsung Find My Mobile if you have a Samsung account and Remote unlock was enabled
Use the phone’s built-in recovery mode to factory reset it
Use the manufacturer’s official account recovery or device unlock service
If you remember your Google account, sign in after reset to pass Factory Reset Protection
Visit an authorized service center with proof of ownership
Contact your carrier for device-specific support
If the phone is managed by an employer or school, contact the administrator