I did the IMU calibration inside my house and then took my P3S out to my garage to at least hover it for the first time since I bought it. After I hovered for a couple minutes I landed and noticed that the gimbal was making the grinding type noise it makes when doing the gimbal calibration. The noise would stop when I rotated the camera down, but would start again when the camera was moved back to the forward position. I moved the P3S back inside the house to room temperature and within a couple minutes the noise stopped for good. It appears the cold temperature is causing this. It is currently 27 F here. Does this mean that I need to do the cold IMU calibration? If so, is my current outside temperature to cold to do the IMU calibration and/or safely fly my PS3? I have not made a first flight yet and I don't want to mess something up before I even get started.