The network fault message failed to be sent. Why can't Meizu x4 mobile phone text messages be sent out?

Failed to send network fault information, Meizu x4 mobile phone short message cannot be sent. The solution steps are as follows:

1, first open the dial-up interface of the mobile phone and enter * # * # 4636 # * # *;

2. After the input is completed, the mobile phone will automatically open the project mode and click "Mobile Information";

3. Then enter the mobile phone information interface, find "IMS registration needs to be turned on", click "IMS registration needs to be turned off", then click "Enable SMS via IMS" and click "Disable SMS via IMS";

4. If you still can't send SMS after completing the above steps, open your SMS interface and click the three points in the lower right corner to enter the SMS setting interface;

5. Scroll down to find "SMS Center", then click and enter the number of SMS Center.