What if Unicom 4g can't receive SMS?

Unicom's mobile phone card failed to receive SMS successfully. It is recommended to check whether the following conditions exist:

1, SMS center number is set incorrectly. If it is not correct, you can reset the correct SMS center number through your mobile phone. You can call the customer service hotline to get the number of the SMS center.

2. SMS function is not enabled on the mobile phone number card. If it is not opened, you can call the customer service center and it will be opened by manual customer service.

3. The current status of the mobile phone number card is abnormal. If the status of the mobile phone number card is abnormal, you can call the customer service hotline to ask why.