What is the original password for China Unicom cards?

For nationwide mobile phone users activated on China Unicom from October 1, 2010, the service password is the initial service password of the last six digits of the mobile phone number. The initial service password cannot be used to query or handle services and needs to be reset. You can reset the service password through the following channels: 1. You can enter the China Unicom online business hall/login page, click Forgot Password, and follow the prompts; 2. You can enter the login page of the mobile phone business hall, click Forgot Password, and enter your mobile phone number and verification code, click Next. At this time, the phone will receive a 6-digit SMS password. Enter the SMS password, new password, verification code and other information and then click Next to reset the service password; 3. Send free SMS Command "MMCZ#6-digit new password" to 10010. In addition to the above methods, you can also call 10010 at your home location or go to the China Unicom business hall at your home location to reset your password.