Harbin Credit Card App (version APP(3.2.9 or above) can be downloaded through major application markets. After downloading, open the client and click any module of "Sweep, Payment Code and Card Management" to pop up the authorization upgrade page. If you agree to authorize the opening, you can use the trading functions such as the main scanning, and if you don't upgrade, you can continue to use the functions such as the bank's own main scanning.