I'm very excited to have just received my Phantom Vision but have a couple of concerns out of the box. I have not attempted my first flight yet and am seeking advice. 1) Humming noise- When powered up the phantom makes a continuous electronic humming noise. It almost sounds like an interference noise. The motors are still, there is constant stand by electronic noise. Is this normal for phantoms 1 / vision? 2) Camera control- I have the vision app and am receiving a video signal through the app. However when I try and control the tilt through the app there is no response from the camera. If i pick the phantom up, the camera self levels / adjusts but I can not get it to do any manual control through the app. If there is a problem I want to get it addressed before first flight. Thank you for any input.