Seagate 7200.12 doesn't work.

Repairing Seagate HDDs.
helpwithmydrive
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Seagate 7200.12 doesn't work.

Postby helpwithmydrive » Tue Feb 17, 2015 1:28 am

Please help.
My drive doesn't work and i have important data that i need to recover.
It's a 7200.12 Seagate.
What can is do ?

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Drforbin
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Re: Seagate 7200.12 doesn't work.

Postby Drforbin » Tue Feb 17, 2015 3:20 am

Please leave more details and I'll try and help you the best I can.


Thanxs

helpwithmydrive
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Re: Seagate 7200.12 doesn't work.

Postby helpwithmydrive » Wed Feb 18, 2015 1:38 am

My seagate doesn't work, it's not detected by the BIOS but it's spinning and doesn't produce any strange noise.
Windows can't detect it as well.
It was working fine one day and when i turned on the computer the other day the drive was gone from the device manager and windows / bios can't see it either.
I have the OS installed on another drive and this seagate is mainly for data,
I have photos of my wife and kids that i really want to recover.
Please help me out.

Do you think it might be a TVS issue ? Do i need to buy a new PCB or shall i attempt to remove the TVS ?

Also i've saw this on the forum, do you think that the problem with my drive might be the same ?

http://www.msfn.org/board/topic/128807- ... 0011-hdds/

Or should i try to open the drive to check if there are damage on the plates ?

I really don't want to loose the data on the drive but i don't have money to pay for a professional service.

Please help me out.

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Drforbin
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Re: Seagate 7200.12 doesn't work.

Postby Drforbin » Wed Feb 18, 2015 9:12 pm

Hi.


The Seagate F3 architecture which includes the 7200.11 and 7200.12 are very problematic.
I myself have had quite a few of these drives die.

The characteristic fail is that OS does not recognize the drive at all, nor does the BIOS.


Mainly what happens at least with the 7200.12 drives is that as the ALT-list grows it corrupts the smart table and drive enters a loop and therefore never becomes RDY (ready).

If nothing else is wrong to fix it with the right tools is trivial.

I.e. using pc3000 or mrt tools. In fact these software packages have automatics procedures for this.


It can theoretically be done via the serial interface of the drive using terminal commands.

There is a post by me on the forum which details ALL the F3 arch commands.

Do a search for it under my name.
If you cannot find it PM me, and I will send it to you.

But I caution you. One bad command or if the damage is more extensive than just a corrupt smart table you could loose your data.

I'm not going to suggest to bring it do a so called DR professional.

Because there really is no such thing.

DR professionals are mainly made up of pirates who rip people off and pretend that they are some kind of technology experts.



I hope this all helps alittle.


Drforbin.

helpwithmydrive
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Re: Seagate 7200.12 doesn't work.

Postby helpwithmydrive » Thu Feb 19, 2015 12:35 am

Thanks for the reply.

Can i use this tool to fix the problem ?

Where can i get it ?

Image

Also I've found your list of commands, but i don't know how to use it. Can you help me out ?

A DR professional would be to expensive for me. Shall i buy pc3000 or mrt tools instead and fix the problem myself ?

Do you have experience with those tools ? Is it easy to use them ?

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Drforbin
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Re: Seagate 7200.12 doesn't work.

Postby Drforbin » Thu Feb 19, 2015 1:59 am

All of those are basically front ends for the commands in my list.


You have to first build or get a USB to RS232 interface.
I believe the plans are on here (this forum) somewhere. Search and if you cannot find them I can track them down for you.


A for pc3000. Last I looked it was about $9000.00 and mrt is about $150.00 a month off the top of my head for 24 months. I have not physically used either. I'm sure I could figure them out with minimum effort if I had access to them. As I said. If it's a smart table corruption issue, which is called "the pending bug" clearing the smart table may work.

this can be done via the rs232 terminal interface.


You see there are two ways to send a Seagate drive commands.
One is via the terminal interface and the other is via ATA commands.
These ATA commands are proprietary and are reverse engineered by MRT labs and ace labs for their products.

I hope this helps alittle.
Thre is no magic fix.
I actually had a drive with (i believe) the same problem as yours.
Those Seagate drives are real junk.

I manged to get the drive out of the loop condition and reset the smart table but then I caused LBA mapping problem which rendered the drive mostly unreadable.

I wrote an article about it somewhere on the forum.
Look for it under my name, again if you donot find it and would like to read it, I will look it up for you.


Drforbin.

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Re: Seagate 7200.12 doesn't work.

Postby Drforbin » Thu Feb 19, 2015 2:02 am

Oh by the way. Some joker wanted to charge me $800.00 to rid the drive of the pending bug I described.

That was one of the reasons I started this forum.

Drforbin.

helpwithmydrive
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Re: Seagate 7200.12 doesn't work.

Postby helpwithmydrive » Thu Feb 19, 2015 2:32 am

Ok, thanks !
I will try and will let you know.

fzabkar
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Re: Seagate 7200.12 doesn't work.

Postby fzabkar » Thu Feb 19, 2015 4:24 am

Guide - Using a TTL adaptor to check a Seagate PCB:
viewtopic.php?t=1073&p=4875#p4875

Bypass InitiateMarkPendingReallocateRequest on F3 Arch:
viewtopic.php?f=83&t=557

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Drforbin
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Re: Seagate 7200.12 doesn't work.

Postby Drforbin » Thu Feb 19, 2015 4:48 am

Thanks so much fzabkar.


Drforbin.

baws
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Re: Seagate 7200.12 doesn't work.

Postby baws » Fri Jul 17, 2015 6:17 am

So you guys dont recommend using this guide for the 7200.12?
https://www.youtube.com/watch?v=oI3hDgfssu0


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