Xiaomi's short message label is missing. How to pull it out?

There may be an error in the operation of SMS application. You can enter settings, applications, text messages and clear data. After clearing, restart the phone, and you can see the SMS icon on the desktop.

When you can't find the SMS icon on your phone's desktop, please click Settings on your phone.

Then click Application Management.

Next, please click all in the upper right corner.

Next, please find out the information in all the emails.

Finally, please click on the SMS and open the license notice.