WD Black top HDD

[idrdata]

WI have tried every thing I know to recover data from any WD black top hdd, same problem every time - 3 hard clicks then the drive spins down.

I have tried:
heads swaps
firmware swaps
pcb swaps
spin I/C swaps
pulling out the platters and putting them in to a new matching drive case and using the original parts and also the new parts(matching #'s of course)
swapping the pre-amps

Any one got any ideas or info???

[Alt]

We have several questions:
Which is the exact HDD model?
and how many of them did you see?