The mobile phone deletes short messages and displays unread information.

Your inquiry is about mobile phones.

The possible reasons are as follows:

1, if there is a problem with the mobile phone settings, it is recommended to check the manual, or directly take it to a nearby mobile phone shop to find a professional to help you solve the problem;

2. If there is something wrong with the brush machine, it is recommended to take it to the mobile phone shop for handling.

3. If you need to download mobile phone software, you can search Baidu.

4. If it's an Internet service provider's problem, I suggest calling your service provider directly, Unicom:10010; Telecom10000; Mobile phone: 10086.

I hope my answer is helpful to you. Good luck!

You can ask questions or contact me directly.

Work smoothly, study progress!

Timely adoption, thank you.