Xiaomi mobile phone can't be used on campus.

Try downloading again and check whether the mobile phone number you entered in Yi Campus is in arrears. If it's arrears, it's not necessary.

Easy to use on campus:

1. First, click on the mobile app store to search Yi Campus, and download and install it. 2. Click the Easy Campus app, click the column "Please enter your mobile phone number" in this column, enter the mobile phone number you are using (note: the entered mobile phone number must not be overdue), click Send Verification Code, enter Verification Code after receiving the SMS, and log in. 3. Click on the "Campus Card" at the bottom, click on the "Not tied card yet, please tie the card" in the red circle, then enter your name and ID number, and click Submit. At this time, the card can be tied successfully, and the campus card is added.