When I start my Phantom 3 Professional, the Gimbal seems to go through its routine properly; but has a noisy sound --- the sound is similar to one time when I forgot to remove the protective lens cover. I have recalibrated several times and it does the same thing. The photos and Gimbal wheel seem to work fine and photos look great. The noise and start-up girations tell me --- something is wrong. I also checked all of the tiny screws and everything seems to be in order. Does anyone out there have any thoughts?