My Nokia n72 can't send short messages. It shows that it can't send short messages. What's the matter?

If your mobile phone can't send short messages, you can try to reboot or change your mobile phone for testing, and check whether the following conditions exist:

1. The number of the short message center is set incorrectly, please re-enter the correct number of the short message center;

2. There is no signal or the battery of the mobile phone is low;

3. The system is busy during the peak period of holiday SMS sending, so it is suggested that you try again later or avoid the peak period of sending;

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

5. SMS sending time exceeds 24 hours;

6. The mobile phone blocks the short message sending function;

7. Being blacklisted by SMS;

8. The number balance is insufficient;

9. SMS inbox and outbox are full.