After the online transaction of G&D U Shield is completed, ICBC displays "data signature error, please resubmit or contact local ICBC" for help.

Since your U-Shield works in a bank and your wife's U-Shield of the same model works normally on your computer, it means that IE in your computer did not clear your wife's U-Shield information in time after your wife's U-Shield of the same model was used on your computer. When your U shield is plugged into the computer again, the computer still thinks it is your wife's U shield, so it will report "data signature error". You can delete the information used by your wife's U shield in Tools-Internet Options-Contents-Certificates (the format is "15 digits). P.4 digits) or leave a message asking me to delete the tool automatically. If you can't do it again, there may be something wrong with your U shield settings. You can take your ID card, bank card and U shield to ICBC's larger outlets for certificate recovery.