What's the matter that Samsung s5 can't save the phone number in the phone interface and SMS interface?

According to your description, 1. You can try the following operations: enter the record (call record)-click the menu button in the lower left corner-view mode-select all calls (or select as needed).

2. Check whether the mobile phone time is correct and punctual.

3. Check whether the mobile phone has spare space.

4. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ) and restore the factory settings.

If the problem of restoring the appearance settings still exists, it is recommended to send the mobile phone to the nearest Samsung service center for testing and further processing.

Please visit the address and contact information of the service center:

. Samsung . com/support/service locations . ASP