1. Check whether the hidden application is set (some mobile phones support the hidden application function);

2. Some of my own programs are in the Samsung or Galaxy Plus folder;

3. Check whether there is a new version of the mobile phone system and try to upgrade the system (back up the important data in the mobile phone first);

4. If not, please back up the data in your mobile phone (contacts, text messages, photos, etc.). ) and try to restore the phone to the factory settings.

If the problem still exists after the above operation, please take the purchase invoice, maintenance card and machine to Samsung service center for inspection.