I have watched the video on DJI on youtube and thought that I understood. But any smooth landing - is not anything that I can get the device to do. it is jumping around and flipping over. The thing is that the phantom is starting to land - and the video says that then I should not thouch anything and let it land... but it is comming down too fast ... jumping a few times when it hits the ground and then sometimes flipping upside down.. So what am I doing wrong here?