On January 20, 2016 at 5:06:19 PM, Eric Christopherson 
(echristopher...@gmail.com) wrote:

It can work. But I remember reading that each PCB keeps track of bad 
physical blocks; if you transplant the PCB from another drive, you might 
end up with a different set of bad blocks beings saved. 

I still haven't gotten rich enough to use his services, but I've talked 
to this guy named Scott Moulton, who charges $50 evaluation fee + $750 
per drive. He also teaches classes on doing it yourself (for big bucks). 
His web site is <http://myharddrivedied.com/>. 
I’ve worked with Scott Moulton. He’s reasonable compared to some vendors. YMMV, 
but I find him to be extremely helpful. You can email his firm and they will 
talk over options with you before you send the drive in. The $50 does not 
obligate you to anything (other than the $50).

I can’t recall exactly what he told me but many modern drives have a chip on it 
that would need to be moved to a donor PCB in order to spin up the drive. I 
want to say there is some encryption involved the the chip provides. It’s been 
too long since I received that email from him and I can’t find it.

Also, it’s worth doing a little bit of Googling for modern drives and problems. 
I got _very_ lucky one day with a drive which was known to have a firmware bug 
in it that would occasionally lose its ability to determine the drive size. 
With help from the web, I was able to rig up a USB-to-TTL converter, connect to 
certain pins on the drive, then access the firmware shell and repair the drive. 
I don’t want to give any indication that this was easy. It took quite a few 
days of trying. Not only did it involve the converter, but there was a process 
where you’d insert paper between certain PCB contacts and the hard drive to 
interrupt the spin-up process as that was your window to get access to the 
firmware. But it actually worked and I was able to image the drive and move the 
contents to a new drive. 

So put the model number into Google and see if you can find a common failure 
that has a fix. 



Cheers,

m


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