Unicom's mobile phone group sending SMS failed.

If your mobile phone can't send short messages, I suggest you check it in the following ways: 1, and I suggest you 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 plug the card back into your mobile phone and send yourself a short message to see if you can receive it. 3. If not, I suggest you check whether it is a sim card problem. 4. Check whether the number of SMS center is set correctly. If you still can't solve the problem of not sending text messages, I suggest you take your mobile phone card to the local business hall for testing or replacement. Not enough traffic? Half a year's traffic is easy to get! The flow is not cleared across months and is valid for half a year. /sAAGl enjoys a 20% discount.