I have a Phantom 3 Standard. I have the latest firmware installed, my quadcopter was working fine until yesterday. All I did was, I flipped the drone upside down and removed some screws for the prop guards. Now my Phantom has NO start up sound, it does not connect to Wifi, I have done the compass calibration several times and it still says that I need to calibrate the compass. There is also a clicking noise coming from the drone once the battery is turned on. Please help.