Samsung mobile phones often have dialog boxes for no reason.

From your description, I suggest you:

1. Restart the machine and try.

2. After uninstalling the recently installed third-party software, observe whether it is a software conflict, such as mobile phone housekeeper, games and other software.

3. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ) and restore factory settings (enter phone settings-reset-restore factory settings).

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

It is recommended that you apply for "booking to the store" in Samsung official website and enjoy priority maintenance service:/pre-order.

After the appointment is successful, please bring your machine, invoice and warranty card to the service center you reserved on time.

If you need help, please visit support.samsung.com.cn, and official website will provide you with multi-channel service support!