The method to update the certificate is as follows:

1. First log in to online banking.

2. If the customer's validity period is more than 90 days, then clicking the update button will prompt that the time has not expired and cannot be updated.

3. If the customer's certificate expires within 90 days, the system will automatically pop up a dialog box after the customer logs in to prompt the customer to renew the certificate.

4. Customers need to install the plug-in first, then click on the certificate "Get ukey serial number", and then click the update button to update.