Anyway. Now it is the time to solder the circuit for connecting to the HDD's monitor. Question is: why do you think on http://forum.hddguru...ort-t23079.html they marked pins to short - on the reverse side if the PCB (despite they had front side photo)? It's strange - if they made shorting on mounted PCB they would remember points on the front side? What for they bring themself to imagine where corresponding contacts are on the opposite side (and probably commit the error) and then forced us to do the reverce procedure?
Let's see if the attached images help you (and BTW is a good example how the information is - even when disclosed - actually "retained").
First one is a crop of the image you posted ("under" side) of the PCB.
Can you see the contacts "circled" in yellow?
They are the "head" contacts, four sets of five contacts.
Can you see the two contacts circled in red, they are the read channel. (this should
be "common" to "all", the .11 and .12, ES2 and LP)
Since you have to short it, the first occurrence that you can do it "from the upper side" is circled in green.
As you may have noticed, most (BTW nice
) posts indicating where to short only give you the "upper side" of the specific PCB, so you cannot get a "general rule", the given post is an exception, in the sense that they give you the "under side" position (but you have to find yourself what the points are on the "upper side").
The second image attached (also a crop, this time from your second posted image) circles in green/yellow the (hopefully) same two points, but do
check them with a multimeter
Another one. I wouldn't like to lose the recorded data therefore payd attention to the post # 20/10/2011 - 14:56 here: Seagate ST31500541AS not communicate through the terminal (translation from Russian): "On the (Barracuda) LP is very likely that the compiler will not identical with the factory one after the conversion. Due to post-process, when defects are introduced directly into the compiler, rather than lists of defects. And most of the information (recorded on HDD) will not be available (for recovery). It is necessary to back "sluzhebku" (technical data, overhead information?) up to not Eat your heart out after then."
Question is: how to back up mentioned above technical data (overhead information?) in orger to restore them if unlock procedure will be destructive to them?
Nothing you can do (AFAIK) at home, without some dedicated hardware/software (please read as PC-3000 UDMA), mind you I presume
that it could be done at home also through far more econoomical means BUT
you would need a number of informations and an amount of training that are far beyond your capabilities/knowledge (NO offence intended
) but worst than that far beyond my
capabilities/knowledge (and I would guess
beyond those of any non-professional).
More or less all the info we "amateurs" get are the crumbs
that the guys at hddguru and on a selected number of places, mostly Polish, Russian of Chinese (and thus with the aggraviation of google translate or similar) leave behind them or simply feel - from time to time - exceptionally "good" and give as "charity" to the poors.
The usual caveat applies, it all depends on HOW MUCH you value your data (and are prepared to spend for them) and/or HOW MUCH you like gambling.
Only you can decide if it is the case of forgetting a DIY attempt and pay a pro or risk on an all or nothing bet