I went to the Agricultural Bank of China to open online banking, and when I came back, I downloaded the certificate with a USB flash drive. The last step of KBao signature has not responded. What should I do? How far has the certificate been downloaded? Have you passed the client environment verification of the system after entering the reference number and authorization code? If it passes, you will be asked to set an 8-digit KBao password. If you return, you will download the certificate to your KBao, and the certificate has been successfully downloaded. If it doesn't pass the client environment verification of the system, look at the step of prompting information error. Before downloading the certificate, plug in the K-treasure and install the driver.