1. Sign in the web application with the google account which is used to register google remote message service at the android app.

2. From android web control mode account settings, connect to the web controller.

3. User could open android app and connect to the web controller automatically from web app if android app google account has been registered already.

4. When user has signed in the web app, Web Controller will be shown and available to use.

5. After sign out the web app, make sure android app is closed. And log out the Google service after web app sign out for the safety.