Hello,

I am working on a 2 TB Seagate ST2000DM001 from 2012, which spins up, clicks several times and then spins down. Data on this drive is not critical but important enough for me to attempt recovery. The drive has the following specs:

Part number: 9YN164-302
SN: Z1E0GN44
Date code: 12353 (2012-02-29)
Site code: TK
FW: CC4C
Head assembly (sticker): GD4-L AG-L

As I'm suspecting bad heads I'm trying to find a matching set, and would like to confirm a couple of things:

Is it possible to deduce the preamp type from the head assembly sticker or otherwise locate a matching set based on the sticker?

I have so far tried two promising donors (based on SN, PN and DOM) but neither have worked. Incidentally both donors had head assemblies marked "GD4-T AGB1-B#".

I'm using a proper head comb for the procedure and heads are still working when transferred back to the donors. I'm guessing I have just not found a matching set yet as these drives seem to be equipped with many different preamps.

I appreciate any input.

Thanks,
CO

Hi
It is grenada and it will work with any preamp. Donors which you tried already should work, so it is look like your problem are not heads.

Hi,

Thanks for your reply. Is it really confirmed that any preamp should work?

I'm seeing all sorts of discussions that would indicate it's not that straightforward:

https://www.data-medics.com/forum/threa ... 492/page-5

https://forum.hddguru.com/viewtopic.php?t=36850

https://forum.acelab.eu.com/viewtopic.php?t=9092

I'm not saying I'm absolutely positive I'm dealing with a head problem, but visual inspection would also seem to confirm this. Of course, this could have also lead to media problems.

Thanks,
CO