Huawei 6x automatic SMS shutdown.

Sometimes, the mobile phone traffic management function supports regular automatic calibration, and sends free short messages to operators to check traffic at regular intervals every day.

If you have set up a traffic package, you can go to "Settings"; Traffic management ",click to enlarge, and then enter the" correct traffic data >; Automatic calibration at regular intervals "and set it to" Off ".

There are also some third-party applications that automatically send short messages to operators every day to get traffic information, showing your current traffic usage.

You can click "mobile phone manager" and enter "rights management >"; Permission > Send SMS, view the list of applications with permission to send SMS, click Apply, and set the permission to "Forbidden".