There are many factors that affect the failure of smart phones. For example, third-party software conflicts, viruses, and excessive cache usage will all cause automatic restart. It is recommended to try the following methods:

1. Uninstall the recently installed third-party software, and initially eliminate the causes of system software conflicts.

2. After taking out the external SD card, test whether there is a restart phenomenon.

3. Back up mobile phone data (phone book, text messages, pictures, etc. ) and restore the phone to the factory settings.

If there are still problems through the above methods, it is recommended to send the mobile phone to the nearest Samsung service center for testing.