1.iPhone:
(1) Please select "Settings-General-Accessibility-Mono Audio" to turn off mono audio;
(2) Please click "Settings-General-Auxiliary Functions-Telephone Noise Cancellation" to open it and put it in the middle;
(3) Please click "Settings-Music-Volume Limit" to close and drag the maximum volume to the maximum;
(4) After inserting the U cover, turn the volume key of the mobile phone to the maximum volume.
2. Android phone: Please turn on the audio permission through the phone or turn off the sound switch in the settings.
1, ICBC U shield signature failed or incomplete 405
① 405 indicates that the failure of U shield payment may be due to poor contact between U shield and bank card. You need to reinsert the U-shield at the branch or replace the U-shield shell.
② It may be because you have two different ICBC U shields installed on your computer.
(3) U Shield, the customer certificate USBkey issued by China Industrial and Commercial Bank in 2003 and obtained the national patent, is a high-security online banking tool provided by China Industrial and Commercial Bank. It looks like a U disk, and its safety performance is like a shield, which means U-shaped shield, hence the name "U shield". Its function is to protect the safety of online banking funds when handling online banking business and avoid various risks such as hackers, fake website viruses and trojans.
2.① U shield is a tool for electronic signature and digital authentication of online banking. It has a micro smart card processor, and uses 1024-bit asymmetric key algorithm to encrypt, decrypt and sign online data to ensure the confidentiality, authenticity, integrity and non-repudiation of online transactions.
② In addition to U shield, ICBC also introduced a series of security measures: alias login (different from the custom login mode of traditional account login), double password control of login password and payment password, and payment amount control to ensure customer safety; Fake bank websites can be identified and prevented through website verification, website certificate verification (click on the "encryption lock" diagram in the lower right corner of ICBC website) and reserved information verification.
Operating environment: software and model: mobile banking client of Bank of China 7. 1.7.
Mobile phone and model: system software: Android 10
Demo mobile phone: vivos 10