There are several reasons for the failure to reset the password: 1. The current status of the mobile phone is down or semi-down; 2. The set password is a simple password, such as: the service password has the same 6 digits, with 6 digits decreasing and 6 digits increasing; The password of 3.3. WLAN service is 6 digits, and using other passwords will lead to reset failure; 4. Resetting the password in the Internet Hall will send a system verification code message to your mobile phone. When the mobile phone can't receive SMS or set SMS on the screen system, it will lead to the failure of resetting the password. If the above reasons cannot be solved, it is suggested that you can contact the local Unicom customer service for verification.