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What should I do if I am prompted "0x80090020, your data signature is wrong" when I use ICBC U Shield for trading?
When trading with U Shield, if you encounter the prompt "0x80090020, your data signature is wrong, please resubmit or contact the local ICBC", please try the following: 1. If the computer is a Vista operating system, please click Start-Programs, right-click IE browser, and select "Run as Administrator"; 2. If there are multiple certificates in IE browser, please select the certificate accurately; 3. Plug in the U shield and check whether the certificate information is imported; 4. Reinstall the online banking control and U shield driver, which can be downloaded through ICBC website-e-banking channel-software download area; 5. If the above methods are still not solved, please bring U shield, bank card for opening e-banking and valid ID card to any outlet in the country to handle the certificate recovery business. If conditions permit, it is recommended to use U shield at outlets as much as possible.