Send a message to 10086 without replying.

1: You have installed software such as mobile phone housekeeper or 360 security guard or information housekeeper to intercept some suspected advertisements or special numbers. I suggest you check the block box in the software to add these special service numbers to the white list.

2. The SMS security center number in the SMS settings bar is incorrect or has been changed. In this case, it is recommended to call the local mobile customer service to ask the number of the SMS center.

3. It may be the reason of mobile phone virus. It is recommended that you restore the factory settings or restore the factory settings or brush the machine under the guidance of professionals. If the operation is difficult, it is recommended to go to the mobile phone repair network for repair.