Clicking on Settings, you can find the Camera settings.
Put “Video Streaming Device” to “T12” or “MK15” based on the transmitter.
When connected for the first time this if this message pops up, click on “Cancel” and move to the next step.
Click on the Video button as shown on the screen.
Click on “OK” and again press the video button as shown above.
The Video will appear like this in the below image, and screen can be expanded by tapping on the full-screen logo.