Causes of failure in sending circle-seeking SMS

Wrong mobile phone number, network problem, the other party's mobile phone is turned off or stopped, or the SMS server is out of order.

1. Wrong mobile phone number: If you enter the wrong mobile phone number when sending a short message, the short message will not be sent. The solution is to confirm whether the mobile phone number is correct, and correct it if it is wrong.

2, network problems: SMS sending requires network signals. If you encounter network failure or instability when sending short messages, it will lead to the failure of sending short messages. You can try changing the network environment or restarting the device and try again.

3. The other party's mobile phone is turned off or out of service area: If the other party's mobile phone is turned off or out of service area, the short message cannot be delivered. You can try to contact the other party or wait for the other party's mobile phone to turn on.

4. SMS server failure: Sometimes SMS server failure will affect the sending and receiving of SMS. You can try to contact the service provider, or wait a while and try again.