Why can't I send a message when my mobile phone is not in arrears?

Hello! Possible reasons mainly include:

① If the mobile phone is abnormal, you can try to take out your mobile phone card and put it on other mobile phones to see if you can send text messages normally;

② The SMS function has been disabled by the operator, so you can call customer service and select manual service for inquiry;

③ Some functions of the mobile phone system are unresponsive, so restart the mobile phone;

④ The SMS center number on the mobile phone is wrong. Call customer service and select manual service to get the SMS center number.