If not try to enable it on the factory settings by switching "carplay" option to "on"....then, after reboot the app will appear on your system.
If everything is correct open it and you will find which connections are available for your zlink app (you can see on the main screen of zLink app some icons on the bottom.right of the screen)
The first time you start zlink you need to have the headunit connected to internet to validate the license.