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 Post subject: Data rescue from Seagate ST1500DM003
PostPosted: May 13th, 2014, 7:33 
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Joined: May 13th, 2014, 6:50
Posts: 11
Location: greenwich
hello

I have a Seagate ST1500DM003 drive which would not spin :evil:

In hope it's a PCB-only problem, I was able to buy the same disk from the same factory (site: SU) , with PCB 100664987 REV A, with same PN, (9YN16G-500) firmware (CC4B), nearly the same Date (12385 vs 12392) printed on. WWN is (5000C5004AE98F3E vs 5000C5004AFCE1F7), SN (S1E06Y9C vs S240BJ97)

Now I have got a question:

Is it possible to switch the PCB only, just to TRY if this would work without transferring ROM chip, or could that possibly harm the data on the device?

donordrives says:

Quote:
F3 Architecture. Hard drives have no dot (.) in the firmware version (“CC44”, “0005HPM1”, “SD01”, etc.). The 8-legged firmware chip will have a number starting with 25, and must be transferred to a new circuit board
.

but on other site, they say
Quote:
Most likely chip transfer will be needed. Optional - Closest Firmware Available to increase chances of PCB to work right away with no chip swap.




As I have the same Firmware, so I would like to know if it is safe to try to switch only the PCBs.

On datarecoveryunion I read:
Quote:
If your hard drive has a new PCB recognized by incorrect parameters (such as wrong model, different SN, or incorrect firmware), you must swap the chip.

So the SN is stored on the rom?

For the ROM chip transplantation, I would follow donordrives Procedure
Hope this is as straightforward as it looks like, please tell me If I'm missing any important parts, thanks


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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 13th, 2014, 8:31 
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Joined: February 9th, 2009, 16:13
Posts: 2520
Location: Ontario, Canada
You can try without the ROM transfer, but it likely won't work without it. I assume that you have no intention of having this job done by a professional data recovery lab, as any damage you cause cannot be undone.

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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 18th, 2014, 17:42 
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Joined: May 13th, 2014, 6:50
Posts: 11
Location: greenwich
ok, I have now unscrewed the pcb boards, the rom chip on the original board is a 25fs406 04 2HH04, on the donor board its a EN25S40, Eon Silicon Solution, marking cFeon S40-75GIP, 4 Megabit 1.8V Serial Flash Memory with 4Kbyte

Just to be shure, may I switch them without problems? the board rev is the same....
thanks in advance


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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 18th, 2014, 17:50 
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Joined: May 13th, 2014, 6:50
Posts: 11
Location: greenwich
thankyou very much, I'll be super careful


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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 18th, 2014, 17:51 
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Joined: May 13th, 2014, 6:50
Posts: 11
Location: greenwich
thankyou very much, I'll be super careful
and report if it worked out


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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 18th, 2014, 17:51 
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Joined: May 13th, 2014, 6:50
Posts: 11
Location: greenwich
thankyou very much, I'll be super careful
and report if it worked out


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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 18th, 2014, 17:52 
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Joined: May 13th, 2014, 6:50
Posts: 11
Location: greenwich
doublepost


Last edited by yeoman on May 18th, 2014, 17:52, edited 1 time in total.

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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 18th, 2014, 18:35 
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Joined: May 13th, 2014, 6:50
Posts: 11
Location: greenwich
:? hmm no success so far - harddisk does not spin with new pcb...
I was super careful and did heat as short as possible - should I try to revert the procedure if the pcb works again with the donor hdd?


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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 18th, 2014, 19:11 
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Joined: May 13th, 2014, 6:50
Posts: 11
Location: greenwich
yeah, I have bought the whole hdd, nearly same specs,...

upside down no, The dot is whereit should be..

here is the photo, with flux still on

http://postimg.org/image/zbll3lcwz

so first thing to try would be just swapping the pcb as it is now to the donnor drive?


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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 18th, 2014, 19:16 
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Joined: May 13th, 2014, 6:50
Posts: 11
Location: greenwich
the photo


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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 18th, 2014, 19:36 
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Joined: May 13th, 2014, 6:50
Posts: 11
Location: greenwich
I did swap first

should I try the pcb as is in the donnor drive first? I would like to minimize soldering es much as possible


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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 18th, 2014, 19:54 
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Joined: May 13th, 2014, 6:50
Posts: 11
Location: greenwich
thanks, gonna try tomorrow - too tired now :spy:


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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: May 18th, 2014, 23:56 
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Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
Check the resistances of the TVS diodes and zero-ohm resistors on the original PCB:

http://www.users.on.net/~fzabkar/HDD/ST ... 01_TVS.jpg

This will tell us whether an overvoltage killed your drive. From a DIY perspective, replacing these components would have been a lot easier and safer than soldering the flash memory. Otherwise I would recommend that DIY-ers purchase their replacement PCBs from those suppliers who include a free firmware transfer service.

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 Post subject: Re: Data rescue from Seagate ST1500DM003
PostPosted: January 10th, 2023, 14:57 
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Joined: June 17th, 2019, 4:49
Posts: 23
Location: Planet Earth
yeoman wrote:
the photo


IDK it is an old post, but I just wonder how is nobody spotted that resistor over the EPROM what is tossed out from it's position, thus likely not contacting correctly.


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