There is something wrong with my mobile phone. After the SMSC is updated, it is an update error. After the update, it is the number of the SMS center, but it cannot send SMS.

Install the mobile phone card to another mobile phone. If there is a setting of "SMS center number" in the SMS application of this mobile phone, you can send a message on this mobile phone after filling in the setting of SMS center number, and then install it back to the original mobile phone, or you can send a message, which is successful.

Information center number, namely short message service center (SMSC), is responsible for relaying, storing or forwarding short messages between base stations and mobile stations (ME); The protocol from ME to SMSC can send short messages from or to mobile stations, and the protocol name follows GMS 03.40 protocol.

Extended data:

If the mobile phone can't send short messages, you can try to restart the mobile phone or change the mobile phone for testing to see if the following conditions exist:

1. SMS center number is not set correctly. Please re-enter the correct SMS center number.

2. No signal or low battery.

3. The system is busy due to the peak of sending short messages during holidays. We suggest that you try again later or avoid the rush hour.

4. The sending format is incorrect. If you send a short message to PHS users, you need to add the area code before the number.

5. The sending time of SMS is more than 24 hours.

6. The mobile phone shields the SMS sending function.

7. Blacklisted by SMS.

8. The quantity balance is insufficient.

9.SMS inbox and outbox are full.