We must download a copy of the bank's security control on the computer according to the bank we handle. After downloading the security control, we will download a USB driver, but many people will plug in the U shield at the same time, which is actually wrong. Don't plug in the U shield at this time. Generally, the bank will give us a drive CD, from which we can download it. After downloading, we can insert the U shield. After inserting the U shield, we will be reminded to install it. After the installation, we can pay with U shield.