Initiate a scan on the mobile agent. And install the unknown certificate provided below.
Click on the apk file above and give any desired name when prompted for the certificate.
For immediate feedback, you can initiate a device scan on the mobile agent. ( how to scan? )
2. Click on 'Device Vulnerabilities'
In order to remove certificates from unknown sources, go to Settings>Security>Certificates/Trusted credintials>click on the certificate you chose and then click remove