Eurgene

Nice lesson jaclaz! Havn't anyone told you that you are a born teacher? This post is a priceless guidance to those DIY men who want to get few (appetizing) "crumbs" more. What about professional data recovery - yes, I understand entirely that professional data recovery is preferable. But... 1. I can't afford to pay requested sum. I am not in hurry though and if I find not expensive and reliable service I will take an advantage of it. 2. To tell the truth I am not entirely trust in the professionalism of local IT (sometimes "professionals" can do less then amateurs - as here - died peacefully ST31500541AS ... and also quietly came alive! ). To send the HDD somewhere means to undergo it an extra risc (to be lost, broken up etc.) 3. As we can see (by way of example of 7200.11, 7200.12, ES.2 ...) information from "bricked" Seagates can be successfully recovered. Yes, Seagate did all to prevent that in Seagate LP but it still worth to try. I might probably have DIY as my last resort. What I can do is double-check each step to reduce (sure, not avoid) the risc before I'll start reanimate it. I did not find my old Siemens data-cable (I did reprogramed DVD players in old good times with it) so tomorrow I'll order Max232 RS232 COM converter on ebay. Meanwile, I am trying to guess a riddle of "m0,2,2,,,,,22 m,6,2,,,,,22" (by the way, don't you know what all this everlasting commas mean? what to input between commas?). I will also try to get authors of posts on http://forum.hddguru...ort-t23079.html to know how successful they were (we do not know if that story had the happy end, do we?)

Thank you for the axplanation. It means I unerstood you correctly. As I have known from the various Internet boards, the 1.5 TB Barracuda is ST31500541AS is just this case. Kind of: Insulating the contacts to either the motor or the heads (or both) doesn't help in this regard, because Seagate, as it seems, has crippled the electronics on these new drives by making the monitor (and presumably everything else) dependent on something that first has to be read from the platters. In other words, while older disks would communicate on the serial monitor even with the PCB totally disconnected from the motor and the heads, these new drives don't even start to log anything into the monitor until after they've spinned up and read a couple sectors from the platters. That's why I asked about unlock pins for my 1,5 TB Seagate Barracuda LP. 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? 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? Evgeny.

Yes, it is "Barracuda LP" and ST31500541AS as follow from the post #38 (picture below is copied from that post) Sorry, my bad . I had read about 7200.11 fault too much and wrong number seems stuck in my brain . On the other hand it is obviously that ST31500341AS - is merely 7200.11 (Barracuda 7200.11 Product Overview -Official web-site) but definitely not 7200.12 (Barracuda 7200.12 Product Overview). 1.5 TB Barracuda is ST31500541AS is undoubtedly (Barracuda LP Product Overview - Official Seagate web-site). Anyway, it was my missprint and I ask to accept my apology . Post # 36 edited by me. Thanks alot jaclaz! http://forum.hddguru...ort-t23079.html is a really nice shot and you entirely deserved your title . I have couple thoughts about this solution ('ll be posted in minutes). And - thank you again.

Thank you jaclaz for the quick response, I am not sure what do you mean as "plain" disconnecting. Could you please explain that? Done! I added photo of the back side of the PCB as well (maybe it could be useful). Evgeny.

Hi folks, I suppose I can ask this two question in this topic at least because it is about the method of Unlocking terminal of Seagate, the matter in question here. There are quite a lot data about Seagate Barracuda 7200.11, some - about ES.2 locked terminals but nothing about procedure of Seagate Barracuda ST31500541AS' terminal unlocking. I am desperate to find any information about unlock pins for my 1,5 TB Seagate ST31500541AS (there are valuable family memories over there ). Hence the question: How do you think universal could be this approach with "disconnected" (by unscrewing) head connector instead of short cutting (if we don't know where the unlock pins are)? And one question more: is it harmless to Seagate Barracuda HDD (regardless of model) to undergo this procedure? To what extent this multiply asynchronous disconnections-connections of multiply connectors safe to HDD and data on it? Many thanks in advance! Evgeny. UPD: Initially HDD was referred as ST31500341AS mistakenly. Correct name is ST31500541AS (pls see picture in the post below).