The mobile phone is on, the number of the SMS center is normal, and the mobile phone can't send messages. What happened?

Hello, we have provided the following solutions for you, please check them one by one: \ \x0d\ \x0d\ 1+0. The correct SMS service center number is not set: Beijing Mobile's SMS center number is +86 13800 100500. \x0d\2。 Is call barring set for GSM users? Please cancel call barring and try again. \x0d\3。 Reply to send: I suggest you send directly and try again \x0d\4. Change your mobile phone and card: I suggest you observe the use of mobile customers around you. If all the customers around you are like this, you can judge that it is a network problem. You can call local 10086. If it is judged that it is a mobile phone problem, please consult the manufacturer. If it is judged that it is a SIM card problem, please go to the designated business hall to check the card.