Alexii,

I have a 3tb that is doing the almost the same thing. I swapped the heads and how its runs without shutting down but gives "Sim Error-Remaining in BootFW.
Perform a double download without a power cycle". Did you get this?
I too can't get into terminal. Also, What do you mean by 'spam' CTR Z?

I'm amazed I found others with the exact make and model hdd and with exact symptoms.
Back in March, 2015 this issue happened for me and I assumed it was a mechanical failure but professional data recovery is way out of my price range.

I found this website because I searched on my PCB model for shorting the Read channel pinholes. I purchased a kit with a serial USB adapter and software specifically to diagnose Seagate hard drive's using the Terminal prompt.

I cannot make Terminal prompt because I believe my adapter is not providing the needed low-voltage TTL serial interface. I need to learn how to build this low voltage interface in beginner language. I doubt I have time to wait for this same part to be shipped to me as I'm under considerable pressure with about six more days to fix this hard drive.

Can anyone point me to a well done "how to make a low-voltage TTL serial interface" that involves going to the local electronics store for the parts? Think of my knowledge level as in Kung Fu Panda.. "There is now a level 0" and I need instructions along those lines. I'm smart and can figure things out if instructions are well-written.

Thanks very much for your time and help,
Jonathan

*******
BARRACUDA 7200.14 FAMILY
SN: Z1F2QLHX
Model: ST300DM001
PN: 1E6166-570
FW: CC45
Date: 13364
Site: TK
PCB: 100687658 REV C

Ok, check this :

http://www.hddoracle.com/viewtopic.php?f=46&t=192

Scroll down to read about the voltage problem with some TTL adaptors :

http://www.hddoracle.com/viewtopic.php?f=46&t=192#p1779

Here you have diagram on how to modify a TTL adaptor so it will work on 7200.14 :

http://www.hddoracle.com/viewtopic.php?f=46&t=192#p4572



Now BE AWARE THAT THIS MIGHT NOT HELP YOU AT ALL WITH YOUR SPECIFIC DRIVE PROBLEM.

DO NOT ISSUE ANY COMMANDS TO THE DRIVE IF YOU ARE NOT SURE ABOUT WHAT YOU ARE DOING.

Does the drive spins at all ? Does it clicks or produces strange sounds ? It's detected by the BIOS ?

I would say that if the drive is detected your best course of action should be attempting to disable the rellocation and attempt to clone the drive with ddrescue lacking better tools.

This is as far as you can go if you decide to follow the do-it-yourself path.

If the data is really important you should consider the use of a professional data recovery firm.

_________________
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This is a DM series drive that is known for multiple problems and the majority of them are not fixable at home and require at least expensive cloning tools and on most cases head stack replacement as well ....

Even some professionals are declining DM series of drives because they are considerable hard to recover from.

Wishing you good luck with your project.

_________________
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Thank you both very much for the quick responses. This is a bit discouraging to hear of the difficulty level.

I will read all of this and keep pushing forward to see if I can see any success.

Thanks again and I'll only post back here if I have further questions or if I can state any successes.
Jonathan

Background: The hard drive does not/has not made any clicking sounds. The hard drive powers up every time but will not be recognized by any computer's BIOS.

Update:
The USB TTL Adapter I purchased is using the correct 1.8V as I confirmed with the manufacturer that the adapter was designed for the range of 1.8V to 5V.

I still cannot get a Terminal Prompt but I was able to use the software to read the boot messages. I was told that this information says I have head failure.

Four Questions:
1. What is a fair estimate of total cost that a data recovery business would charge?
2. Do you have 3-5 suggestions for data recovery businesses to contact?
3. Are there any recommended books that would help me learn how to repair the heads of a hard drive and recover the data? (Or is everything on YouTube?)
4. What hard drive information do I need to use to find a donor drive?
(This is a repeat of the information I posted earlier)
BARRACUDA 7200.14 FAMILY
SN: Z1F2QLHX
Model: ST300DM001
PN: 1E6166-570
FW: CC45
Date: 13364
Site: TK
PCB: 100687658 REV C

Thank you again for your time and consideration of this situation.
Jonathan

Hi jonathan_HPC,

1. 1000$-2000$ (If there is media damage might be more)
2. Do not know one in Texas, sorry. But other forum members might help out.
3. First, you can not repair heads. One can try to clean them but when they are damaged, you would do a heads-swap. For a heads-swap you need much practice, the right tools and a lab. That's nothing you can learn in a few days. Do not trust in youtube. There are some videos and some are ok but they will not help you in your current situation.
4. Match: SN (first 3), Model, PN, Date (as close as possible), Site. If all matches you will need special tools to patch adaptives and you always need some kind of luck on 7200.14 because even if anything seems fine (matches) there might still be issues you will have to fix.

Best regards,

_________________
030 Datenrettung Berlin GmbH (Germany)
HDD, SSD, NAS, RAID Datenrettung - 030-datenrettung.de

On the DM series you will even need more then one donnor drive as the heads usually die while imaging the drive to a new one.

You will need something like PC-3000 - DE to patch adaptives and clobe the drive by hardware. Cost of the tool would be $6000 and up. You will need at least an hepa 100 laminar flow workbench ($1500 and up) and of course comaptible donnor drives as stated.

DM series are a real pain to work with ...

I would say send it to a data recovery firm as you don't have any chance to do a head replacement on that drive. If it were another type of drive you could be lucky but on those there are no chance at all for you to get lucky without a huge amount of practice ...

viewtopic.php?f=1&t=31861

Match the first 3 of serial number, full model, part number and site or even better if possible to match the first 4 of the serial ....

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i have same Disk St2000DM001 - same problem, i can entert f3 t .
Then i enter



Disk is visable by Bios and Ubuntu.
I run ddrescue -n -f /dev/sda /dev/sdb (another 2TB disk) but ddrescue is works wery slow, about 200kB/s

How to speedup?
Sorry my english is bad:D

hardware imager might

no i have only desktop and ddrescue

try it in reverse mode with -R switch.

_________________
Data Recovery Pakistan

Head swapped a ST2000DM001 yesterday myself too. Only had around 1500 bad sectors in the end which were isolated to a few areas and only affected a few files. I'm actually starting to like these DM drive cases now that I fully understand most of their quirks.

_________________
Data Medics - Hard Drive, SSD, and RAID Data Recovery Service Company

1 .how to swap heads?
2. When i run ddrescue is running abount 260kb/s - restore 5000MB and hang
i start from 0GB , 20GB and is the same - when i connect console to f3 T and /1 > N1 - hdd works again.

Try :

F"RWRecoveryFlags",00,22
F"BGMSFlags",00,22
F"PerformanceFlags",043C,22

Try to clone.

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The HDD Oracle - Platform for OPEN research on Data Recovery.

This works on F3 7200.14 Models?

Try coppy thist comands to F3 T?

Instead of :

F009A,C1
F00E2,91
F00EC,B0


use :

F"RWRecoveryFlags",00,22
F"BGMSFlags",00,22
F"PerformanceFlags",043C,22


on F3 T>

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The HDD Oracle - Platform for OPEN research on Data Recovery.

ok, i use


F"RWRecoveryFlags",00,22
F"BGMSFlags",00,22
F"PerformanceFlags",043C,22

and next

/1
/N1

now im testing.

ok, ddrescue works again, but speed is very bad, about 190-200kb/s :/
There is any option to speed up this by comamnds in /T ?

This is screen from ubuntu and ddrescue

and this is F3 T/F

After this commands