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In order to control your Grundig Android TV with "Grundig Smart Remote" mobile application, you must run "Grundig Smart Remote - TV Service" application on your TV. This application allows you to control your TV with your mobile device by starting the TV services required for "Grundig Smart Remote" application to operate, in the background.
After you have installed "Grundig Smart Remote - TV Service" application on your TV, you need to start it only once. When the required services has started in the background successfully, "Grundig Smart Remote - TV Service has activated!" message will be displayed on the screen. From now on you can close the application to enjoy the TV, required services keep functioning in the background and they will be activated automatically on each TV boot up.
After you have initiated "Grundig Smart Remote - TV Service" application on your Grundig Android TV, you can control the TV by installing "Grundig Smart Remote" application on your mobile device and following the instructions of it.