1, which is not supported by the browser. This happens if the browser does not support certificate loading in KBao. It is generally recommended to use the IE browser that comes with the computer.

2.KBao has no driver installed. Go to ABC's online banking homepage, select your own KBao and download the corresponding driver. Then when you insert KBao, it will show that KBao has been inserted, but the certificate may not be detected at this time. At this time, there will be a banned plug-in above your browser. As long as you lift the ban, you may have to download a signature control of ABC at last.

3.KBao certificate expired. If the certificate expires, it needs to be updated in KBao before it can be used normally.

4. If all the above problems are eliminated, you can directly call the customer service telephone number of ABC at 95599 for consultation.