My Unicom mobile card can't send short messages. What's the matter?

If your Unicom number can't send and receive short messages, it can be ruled out in the following aspects:

1. First, confirm whether your Unicom number is in arrears;

2. If you are not in arrears, you can change your mobile phone to see if you can send and receive short messages;

2. If you can send and receive short messages, I suggest you re-insert the card into your mobile phone and send a short message to yourself to see if you can receive it.

3. If not, I suggest you check whether there is a problem with the sim card;

4. Check whether the number of SMS center is set correctly;

5. take your mobile phone card to the local business hall to test or replace it.