Ensure that the vehicle is powered on and that the device is connected to a powered DJI hand controller. Details on these steps can be found here:
Download the DJI Go App from the Itunes App Store or Google Play store on your device. Launch the DJI Go App.
When the App opens click on the button "Enter Camera View" as shown below.
After 1-2 minutes and once a GPS signal is acquired live video will start streaming on the screen.
Note: Depending on the vehicles configuration and which gimbal(s) are installed, the video may not be displayed without connecting the GCS. For typical Inspection operations, users will want to connect the GCS and use the gimbal controller to select the video source and control the Omni Gimbal.