To unbind JD.COM Baitiao's bank card, you need to open Jingdong Financial app, open JD.COM Baitiao, click the available limit drop-down and click Settings, select automatic repayment, click Manage Bank Card, then select the bank card to unbind, and click Delete. The binding method of JD.COM White Bank Card is: 1. If you haven't opened the white bank card, you can click "My" in JD.COM App, then select the white bank card, click Activate after entering, fill in some information, and then you can bind the bank card. 2. It can be bound in Jingdong Finance. You need to download Jingdong Finance on your mobile phone first, and then find the IOUs. If the white strip is not opened, it is similar to the above method. If IOUs have been enabled, you can add new bank cards, delete unused bank cards or modify the repayment order of existing bank cards in my IOUs-Manage Automatic Repayment.