Problem fix if you flash the hard drive and the xbox don't recognize it you should change the port i try 4 or 5 until i got one that works or you could try to flash it on another PC.
Hope that this will help the people with the same problem .
Thank you very much for this tutorial.
I flashed my hard dirve WD Scorpio Black 250 BEKT it said firmware flashed successfully but my xbox 360 don't recognize it when i try to format it . Why ? Can someone help me with this .
Thank you.