2. Replace the driver's license, and the file code of the driver's license is different. You need to unlock the driver's license and re-bind the driver's license for inquiry;
3, the official system maintenance problems, waiting for the official repair;
4. There is a problem in the local computer room, or the service is abnormal due to too many one-time logins;
5. Mobile phone network problem, go to mobile phone settings-mobile network-access point name, and click Select Reset to try the default settings;
6. Mobile phones may have other problems such as arrears.
Extension: 1. Users must log in before they can enter the traffic control 12 123.
2. Then the user enters the personal center, clicks "My driver's license", and will remind the user that there is no driver's license bound. The user clicks OK to bind the driver's license, and enters the driver's license name, license number and other information for binding.