You had stated that “the camera works fine" if it did you would be connected to the drone and see the camera view on your mobile device. When you power up the drone and bind it to the controller you should see the wifi address on your mobile device if not then you have a bad camera. The camera is what transmits the wifi signal which you connect to then view after opening the protocol app. The camera is available through protocol online, not sure if it qualifies for free replacement parts.