While the phantom is turned on, but idle, should the gimbal H3-3D be making ANY sound whatsoever? My gimbal makes a slight humming sound. I can't tell if the gimbal is fighting to stay balanced, or this is normal. I crashed my phantom a few weeks ago, but I put everything back together, and it's working fine. I don't know whether the gimbal humming is normal, or it's a consequence of the crash. No other issues. Thanks!