My friend's Huawei mobile phone often fails to send text messages. What happened?

1: Please confirm whether the SIM card has passed the authentication of the operator's real name registration system. If the information when handling the SIM card does not match the ID card information, there may be problems such as abnormal signal, inability to make phone calls, inability to send and receive short messages, and inability to access the Internet for data services. It is recommended that you consult the operator's customer service for real-name registration system certification.

2. Please check whether the SIM card is in arrears, and the suspension of arrears will affect the mobile phone communication.

3. Please confirm whether the number of SMS center is set correctly. Please consult the operator for details.

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

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

Remarks: If the above methods can't solve the problem, it is recommended that you back up important data, restore factory settings or upgrade your mobile phone system and try again.