First, make sure that your camera records in MP4 format. Only this format can be read by the app.
Turn on the device by pressing a button. The device flashes blue and waits for GPS signal. When the signal is found, the status LED will turn green. You can now connect the audio cable to your camera.
Note: Use the microphone input and not the headphone output.
You can now use your video camera for recording as usual.
