What does it mean that ICBC's digital signature is wrong? What if ICBC's digital signature is wrong?

What do you mean by "your digital signature is wrong" when trading with U shield?

This prompt is usually caused by abnormal hardware connection of U shield, abnormal driver of U shield or no wrong certificate selected when the page prompts "Please choose my certificate to sign". You can check whether the certificate status is normal through the certificate driver, determine the cause of the problem, and then take solutions such as reconnecting the U shield, reinstalling the U shield driver, and choosing the correct personal certificate to re-trade.

In addition, if you are using a Hua Hong II U-shield, this question appears on the page when you are prompted "Please check the information displayed on the U-shield ...". Please trade again, and check the information displayed on the page with the information displayed on the U-Shield LCD screen. Click the "OK" button on the U-Shield. When the LCD screen prompts for confirmation again, ask the customer to click the "OK" button of U shield again, and the page will pop up a prompt of "Please enter the password to access U shield". Enter the U-Shield password and click OK to complete the transaction.