Generally, there are two possibilities in this situation. China Bank online banking system maintenance, the solution is to try again later. Ukey certificate or digital certificate is not normal. Solution: restart the computer and operate again, but it still doesn't work. Update the certificate driver. Open IE browser, click Tools, and then click Internet Options; Click "Content" in Internet options, and then click "Clear SSL status"; Open IE browser, click Tools-Internet Options-Security-Default Level, and then click Custom Level. Then you can reinstall the certificate and U shield.

Computer model: Lenovo Xiao Xin air 14 China Bank 5.6

If there is a digital signature error in online banking, you can try the following operations: Reinstall the online banking control and the U shield driver. If there are multiple certificates in IE browser, please select the certificate accurately; Plug in the U shield and check whether the certificate information is imported; If the computer is a Vista operating system, please right-click IE browser and select "Run as Administrator"; If the above methods are still not solved, please bring your 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.

1. Customers can download and use the U shield in the following ways: driver installation: log in to the ICBC portal website and complete the installation of controls and U shield drivers according to the prompts; Certificate download: log in to online banking, verify the withdrawal password, set the U shield password and download the certificate; In addition, the universal U shield can also be downloaded through mobile banking; U-shield transaction: Insert U-shield according to the page prompts (universal U-shield needs to be connected to mobile phone or computer through audio interface or USB interface, and iPhone7 needs to be connected through audio adapter), and accurately enter the U-shield password in the corresponding position on the page.

Second, Apple computers can only use universal second-generation U shields; If you use the U shield when changing equipment, you only need to reinstall the controls and drivers, and you don't need to download the certificate. Personal online banking system prompts "digital signature verification error": Please confirm whether you have done related transactions of BOC E Shield through the counter. If you have completed the reissue transaction, you should get the reference number and authorization code. Please use the reference number and authorization code to download the certificate through the CA certificate download link on the right side of the online banking login page. Please check whether the E-Shield CA certificate of Bank of China has expired through "China Bank Online Banking USBKey Digital Security Certificate Management Tool" (or through the counter). If it is confirmed that it has expired, please apply for replacement at the counter outlet with the online banking card/passbook and the valid ID card for opening the online banking card/passbook.