It should be that the U shield is not in good contact with the mobile phone, and most of them are bad shells.

Recommend reinserting the U shield. If it still doesn't work, it is recommended to go to ICBC to find a staff member to change the U shield shell. No formalities are needed. Just find someone to change it.

Extended data:

On the basis of the original online banking U-Shield, Universal U-Shield has added conversion accessories, which can be connected to computers through USB ports or mobile devices such as mobile phones and iPad through audio interfaces.

It not only covers the functions of the original online banking U shield, but also adopts high-intensity information encryption, digital authentication and digital signature technology, which is unrepeatable. It is a kind of equipment with high security level for online banking and mobile banking clients at present, and is suitable for mobile banking clients of Apple series and Android system.

Whether it can be used on Samsung equipment, it is recommended to contact the equipment provider (Industrial and Commercial Bank of China), and the usage method is recommended to check the U shield manual.

References:

U shield _ Baidu encyclopedia?