The software, safe space and U shield driver of rural credit cooperatives should be deleted, and it is best to use 360. Reload these software and drivers after deletion. First, set the security option in the Internet option of the computer webpage to the default level. Another reason why the signature failed is that the certificate in your U shield is wrong. After installing these software, controls and drivers correctly, insert and try them out. If not, there is something wrong with the U shield. Go directly to the account opening branch to change it.