How does Xiaomi resume intercepting SMS?

Set in the mobile phone security center.

In the mobile phone security center, enter harassment interception, and you can see some intercepted messages. You can set some intercepted keywords, and click the Settings button in the upper right corner. After entering the settings, you can set the intercepted keywords, such as winning prizes and lottery tickets. Any such messages will be filtered in the future.

Apple mobile phone, then open settings, information, filter unknown senders, and turn on its switch button. In addition, there is a switch that needs to be turned off. Click Settings, Information and Messages to close it.