How does mobile phone flash payment work?

1. Find the icon of China UnionPay Express on the mobile phone desktop.

2. Click the icon of China UnionPay Express to enter the main interface of China UnionPay Express.

3. Then click the card management button at the bottom of the main interface of China UnionPay Express.

4. Enter the card management interface, and then find the button to add a bank card.

5. Click the Add button and enter the bank card number to complete the bank card addition.

6. After adding the bank card, return to the main interface of China UnionPay Express, and then find the down payment button.

7. Click the down payment button, and you can use China UnionPay Express to receive and pay.

8. Complete the payment offline.