To check the phone bill using a China Unicom mobile phone card, I can use another mobile phone to check, but a password is required. What is the password?

"If your number has not changed the service password since opening a new account, then your service password may be the initial password. The initial password is the last 6 digits of the mobile phone number and needs to be reset before it can be used. Yes Reset your 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, enter your mobile phone number and verification After entering the password, click Next. Your phone will receive a 4-digit SMS password. Enter the SMS password, new password, verification code and other information and then click Next to reset the service password; 3. Use a random password to log in online. Click Business > Service Password Management > Service Password Reset in the business hall/home page to set the service password. 4. Send the free text message command "MMCZ#6-digit new password" to 10010. In addition to the above method, you can also call China Unicom 10010 or. Go to China Unicom's business hall to reset your password. Then you can log in to China Unicom's online business hall and click Phone Charge Inquiry>Call Charge Inquiry>Real-time Call Charge (Call Charge for the Month) to check the current month's call charge. "