What is the "message sending failure" on the mobile phone?

The sudden inability of the mobile phone to send information may be due to the following reasons:

In the first case, we can't send short messages because our mobile phone is in arrears. This kind of situation is the most common and requires us to pay in time.

2. The information center number of the mobile phone is set incorrectly, which can generally be solved according to the actual information center number of your province. Maybe your SMS center number was changed by yourself. You can check the SMS settings or call customer service.

3. Wrong mobile phone mode selection.

4. It may be the shielding caused by mobile phone antivirus software. Try to remove the software.

5. See if the SMS service has been cancelled. If this is the case, you can choose to let the staff reopen it.

Extended data:

There are two kinds of short messages: one is text or digital information sent or received directly by users through mobile phones or other telecommunication terminals, and the number of characters that users can receive and send short messages at a time is 160 English or digital characters or 70 Chinese characters.

One is MMS. Its biggest feature is that it supports multimedia functions and can transmit comprehensive content and information, including text, images, sounds, data and other multimedia formats.

References:

SMS _ Baidu Encyclopedia