Samsung s8qq message screen.

It is recommended that you try the following methods:

1. Change the automatic screen closing time: Settings-(My device)-Display-Automatic screen closing-Set the time to be changed.

2. Check whether the relevant third-party software has been downloaded, and then try again after uninstalling.

3. Back up data (contacts, text messages, pictures, etc. ) and restore the factory settings (Settings-Reset-Restore Factory Settings).

Please upgrade your mobile phone and try again.

If the problem still exists, it is recommended that you take the purchase invoice, maintenance card and mobile phone to the local service center for professional engineers to help you test.