Last night I had the battery and controller sitting on my desk charging. At the same time my wife was washing clothes. The floor shaking created by the spin cycle caused the controller to vibrate and it dropped to the floor. It fell exactly 30 inches onto a carpeted floor. When I picked it up the S1 switch on the top right of the controller had snapped off and now the controller will not charge. I take good care of my gear. The drone, controller and accessories are all in a case when not in use unless I am charging in preparation for use. This is really surprising and disappointing. I have sent a message to DJI. It will be interesting to see how they reply.