1. Log in to the latest version of "China Construction Bank" APP and click "Credit Card-One-Click Binding Card".
2. Click "Replace" to select the credit card to be bound, select the platform to be bound, and click "Unlock Card".
3. Check your personal information and mobile phone number, read the relevant agreement carefully, and click "Next" after it is confirmed.
4. Confirm the platform payment account and click "Next". Enter the SMS verification code and click "Next" after confirmation.