Had this problem, more details here
http://forum.dji.com/thread-13158-1-1.html , unfortunately the only solution was to send my bird to DJI Service in Germany, as there is a special calibration machine, to properly adjust the angle of the carbon fiber booms. I was also looking for a way to fix it myself, but it needs to be done in their service center, due to this special calibration machine. Don't know where you're located, I'm in Europe and all I can say is that DJI Support team in Germany is awesome, they did their best to send my bird back as soon as possible, I was very satisfied with their service. I also experienced a severe crash, due to pilot error, it looked to me like a total damage but thanks to DJI Support team I was back in the air in just two weeks. take care, good luck with the repairs !