1. Install the Client/Server Security Agent on the computer, insert the digital certificate, and then open the Client/Server Security Agent.
2. After successfully reading the certificate, click Certificate Renewal.
3. Select the digital certificate to renew, and then click Apply for Renewal.
4. Check "I accept the contents of the e-certification service agreement" and click "Next".
5. After confirming the basic information and handling personnel information, click Submit, and then enter the certificate password.
6. Prompt to submit successfully, waiting for the administrator to review.
7. After the administrator successfully reviews, click Install Certificate. After successful installation, the digital certificate will be successfully updated.