First of all, the U shield must have Bluetooth function to connect with the mobile phone. When connecting a Bluetooth mobile phone, turn on the switch of U shield and turn on Bluetooth at the same time. When the mobile phone and the U shield get closer, the two devices will be connected. You can start to handle the transfer business of mobile banking. When you need U-Shield authentication, you need to enter the U-Shield password to confirm the transaction information on the U-Shield.