1. First download the "Tianfu Tongban" APP and click "My" to enter the login page.

2. After authenticating and logging into the "Tianfu Tongban" APP, click "All" in the "My Certificates" menu bar to enter the "Electronic Certificates" page.

3. Click "Add License", select "Certificate of No Criminal Record" from the drop-down option in the "Personal License" menu bar and click "Add".

4. After the addition is completed, return to the electronic certificate page. At this time, the "Certificate of No Criminal Record" has been added successfully. Select this certificate, enter the password setting page, set the ID password according to the prompts, and enter the mobile phone verification code.

5. After the password setting is completed, real-person authentication is required. If you have completed the real-person authentication, go directly to the application instructions page and click "Read and Agree".

6. On the "Application Inquiry Form" page, confirm that the basic information is correct and select "Application Purpose" and the inquiry time range.

7. After the final submission is completed, the system prompts "Submission successful, just wait for approval.