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It should be that the U-shield is not in good contact with the phone, mostly due to a bad shell.
It is recommended to re-insert the U-shield. If it still doesn’t work, it is recommended to go to ICBC to ask staff to change the U-shield casing. There is no need for any procedures, just ask someone to change it.
Extended information:
The universal U-shield adds conversion accessories based on the original online banking U-shield. It can be connected to a computer through a USB port, or to a mobile phone or iPad through an audio interface. Wait for the mobile device to connect.
It not only covers the functions of the original online banking U-shield, but also adopts high-strength information encryption, digital authentication and digital signature technology, which is non-replicable and is currently the highest security level for online banking and mobile banking clients. A device suitable for Apple series and mobile banking clients installed with Android system.
For details on whether it can be used on Samsung devices, it is recommended to contact the equipment provider (Industrial and Commercial Bank of China). For usage methods, it is recommended to check the USB shield manual.
Reference: u shield_Baidu Encyclopedia?