1. Check whether the mobile phone network connection is stable. It is recommended to try to change the wireless network.

2. Try to update the software version.

3. Click Settings in the mobile phone application, then open the application manager, select the downloaded problematic application, and click Clear Data.

4. Back up data (contacts, text messages, pictures, etc.). ), restore the factory settings and try to reinstall.

5. Update the mobile phone system version.

6. Still can't solve it. Please back up important data (contacts, information, photos, etc.). ) and try to restore the factory settings.

If the problem still exists, please take the purchase invoice, maintenance card and machine to the Samsung service center, and the professional after-sales engineer will help you test it.