Huawei p7 mobile phones often display unsent messages.

Dear, please follow the following methods:

1. Confirm whether it's a card problem. Suggest changing a mobile phone to see if there is the same problem, or consult the operator whether the related functions are disabled.

2. Confirm whether the SMS center number is set correctly, and be careful that it is not a local number. The correct SMS center number can be obtained by contacting the operator.

3. If you have installed 360 security software, please uninstall it and try again.

4. When the cell phone has no signal or the signal is weak, the information may not be sent successfully. Please try again where the signal is strong.

5. The network system is busy, especially during the peak period of holiday information transmission, and the information transmission may be unsuccessful. Please avoid the rush hour and try again.

6. The format of the sending number is incorrect, which may lead to the failure of sending information. Please enter the correct number and try again.