Hello, friends, how to send text messages with Unicom King Card?

If the mobile phone number can't send short messages, you can check it in the following ways: (1) Check whether the status of the mobile phone number is normal, and the mobile phone needs to be recharged if it is in arrears. (2) Check whether the SMS function of this number has been opened. (3) Check whether the number of SMS center is set correctly. (4) Restart the mobile phone, or replace the mobile phone card with the mobile phone of family and friends and try again to see if other Unicom users around are using it normally. If your problem has not been solved, please contact local customer service for consultation.