Samsung screen off reminder is all gray screen

1. Try to restart the machine and try again

2. Uninstall the recently installed third-party software and observe to initially rule out whether it is a software conflict, such as mobile phone manager, games and other software.

3. Back up mobile phone data (phone book, text messages, multimedia files, etc.) and restore factory settings (enter phone settings--Reset-Restore factory settings)

If If the problem persists after restoring factory settings, it is recommended to send the phone to the nearest Samsung service center for testing and further processing.