Unicom customer service can't receive SMS.

1, you can check whether the short messages sent to all other numbers cannot be received. If yes, there may be something wrong with the SMS function of the mobile phone. Suggest calling customer service to refresh the network and restart the phone. If it can't be recovered, you need to give feedback to customer service to check whether the data in the SMS center is normal.

2. See if the short message sent to mobile or telecom can't be received by the other party. In this case, it is intercepted by another operator and needs to be fed back to the customer service.

3. See if your other mobile phone has a short message blacklist.

4. If it's convenient, ask the surrounding users whether this phenomenon exists, and eliminate the cause of local network failure.