You may have herd this before i tried flashing my xbox 360 drive recently with jungleflasher and it wasent detected i was using the xbox as power i believe.that my computers chipset isnt compatible but someone tole me you could buy something to get it to work. Also its a benq drive.
Would be best to the tutorials on here first plus the jungleflasher tut Thefallen2080,then if you run into trouble fire away.Below are chipsets you can use for flashing. http://www.se7ensins.com/forums/threads/list-of-compatible-chipsets-for-xbox-360-flashing.106482/