Sorry to hear that, something you don't hear to often happening to the D2 I believe...mine has been dropped hard a few times and still works with no issues...despite its reliability its electronic and electronics occasionally fail, that's why I always have a mechanical backup on hand.
	
		
			
		
		
	
			
			 
				
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		

 
	 
 
		 
 
		 
 
		