Why can't cell phones send messages instead of receiving them? What's the matter?

This situation should be the number setting problem of the information center. Just reset the number of the information center. The specific operation is as follows:

1. Find the settings in the SMS and click Settings.

2. After entering the settings, you can see the information center, find the information center corresponding to the mobile phone card, and click Enter.

3. After opening the "Information Center", you can see that there are a series of numbers in the information center, which should be a series of telephone numbers starting with "+86". If not, then this is why the message cannot be sent. I think the number of the information center is wrong.

4. Change the number of the information center back. The format of the mobile signal number is +86 13800***500. What does * * * stand for? You can refer to the following figure for setting. If you don't know the area code, you can go to Baidu. In addition, the format of Unicom's short message center number is+861301* * 500, and the center number is not required to send short messages with the telecom mobile phone number.

5. After the setting is successful, resend the SMS to verify whether it can be sent.