How to open UnionPay flash payment on mobile phone?

The method of opening UnionPay flash payment on mobile phones is as follows (taking Huawei mobile phones as an example):

First, open "Settings" and enter the setting interface of "Wireless and Network";

Click "NFC" to enter and open the options of "NFC" and "Built-in security chip" as shown in the figure below;

3. Go back to the desktop and open Huawei wallet;

4. Click "Add" to add a bank card, please follow the steps prompted by the mobile phone;

5. After adding a bank card, you can use the function of UnionPay flash payment.