SOF_Bunny :
Had this same issue. Took apart the hd casing, turned out the arm was stuck. Most likely from being dropped, it jammed up somehow. Was able to get the arm moving again but the hd rate itself runs a bit slow. Warranty is still covered so plan to get it swapped out. Hope this helped a little.
true , i had the same problem and i fixed the arm and everything is running like a charm !! 😉