When Xiaomi sends a text message, the display cannot be sent in guest mode. What happened?

Guest mode is a mobile phone protection program, which does not support texting. As long as the visitor mode is turned off, you can send text messages. The solution is as follows.

(1) Open the main interface of the mobile phone and click Settings.

(2) Enter the list of all settings and select Security and Privacy.

(3) Choose privacy protection.

(4) Then turn off the guest mode button, and then try to send short messages.