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What Will I Need to Repair HDD?

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September 23, 2012 2:13:34 AM

Hey guys, recently I burnt out a part of my Western Digital Caviar Black 640GB HDD. It happened about a month ago and it happened after messing with some wires on my motherboard. All that happened was upon boot up, a tiny fire started on my HDD that went out after about 2 seconds when i turned off my power supply.

Before I fish out hundreds on a repair/data recovery company, does anybody know what I can do to fix this?


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Will my data still be recoverable? Thank you

More about : repair hdd

September 23, 2012 2:25:12 AM

Hi.

The print board on the disc seems to be pretty messed up, so repairing it using a welder tool will probably not help very much.

The best thing to try now is to try to get a identical disc and swap the print boards (exept from this one that you won't put back on a drive again)
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a c 314 G Storage
September 23, 2012 3:44:50 AM

The damage looks like it has affected the motor controller or nearby circuitry. Assuming that the preamp is OK, then the most expedient solution would be to replace the board. However, a straight board swap is very unlikely to work. This is because most modern HDDs store unique, drive specific "adaptive" information in a serial EEPROM chip. This chip, or its contents, needs to be transferred from patient to donor. In WD drives, this chip is usually located at U12.

The following PCB suppliers offer a firmware transfer service, either for free, or for US$10:

http://www.donordrives.com
http://www.onepcbsolution.com
http://www.hdd-parts.com

I would advise that you avoid those suppliers who don't tell you that a board won't work without modification. Often they will attempt to obscure the requirement for a firmware transfer by deceptively describing their products as being "for data recovery only".

Alternatively, if you are not adept at soldering, your local TV/AV repair shop should be able to transfer the chip for you.

Some PCBs do not have a discrete serial flash memory chip. Instead they store the adaptive data inside the Marvell MCU (the largest chip). In this case you will need a "PCB adaptation" service.

The following PCB supplier includes such a service for free:
http://www.donordrives.com/services
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September 23, 2012 4:26:21 AM

fzabkar said:
The damage looks like it has affected the motor controller or nearby circuitry. Assuming that the preamp is OK, then the most expedient solution would be to replace the board. However, a straight board swap is very unlikely to work. This is because most modern HDDs store unique, drive specific "adaptive" information in a serial EEPROM chip. This chip, or its contents, needs to be transferred from patient to donor. In WD drives, this chip is usually located at U12.

The following PCB suppliers offer a firmware transfer service, either for free, or for US$10:

http://www.donordrives.com
http://www.onepcbsolution.com
http://www.hdd-parts.com

I would advise that you avoid those suppliers who don't tell you that a board won't work without modification. Often they will attempt to obscure the requirement for a firmware transfer by deceptively describing their products as being "for data recovery only".

Alternatively, if you are not adept at soldering, your local TV/AV repair shop should be able to transfer the chip for you.

Some PCBs do not have a discrete serial flash memory chip. Instead they store the adaptive data inside the Marvell MCU (the largest chip). In this case you will need a "PCB adaptation" service.

The following PCB supplier includes such a service for free:
http://www.donordrives.com/services


Unfortunately the closest PCB board or Full HDD on those sites (and all of Google that I've searched) don't have my exact PCB. The PWB # is the same, but the PCB Sticker # is 2061-701590-M00 AD when the PCB Sticker on my HDD is 2061-701590-M00 AA. Do you think the PCBs would be compatible or do they need the same PCB Sticker # as well?
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a c 314 G Storage
September 23, 2012 6:13:43 AM

I suspect that it would be OK, but I don't know for certain. You could always contact the supplier. I know that the proprietor of donordrives.com is a data recovery professional, so he should be able to tell you.
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September 23, 2012 7:25:33 AM

Honestly I would say simply "you cannot" chances are you will not have the tools nor the means to fix the device and actually get it running again. I don't want to be pessimistic or anything, its just what you are trying to achieve is damn near impossible.
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a c 314 G Storage
September 23, 2012 8:46:56 AM

@eggbrook, a PCB swap is just about the easiest thing you can do.

(1) Unscrew 4 screws with a Torx 6 screwdriver.
(2) Protect the PCB with an antistatic bag.
(3) Find a suitable supplier who offers a firmware transfer service, then pack the PCB and mail it to him.
(4) The PCB supplier takes your board and transfers its firmware to a replacement PCB.
(5) You receive the replacement PCB in the mail and screw it back onto your drive.

What is "damn near impossible" about that?

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October 3, 2012 7:25:10 PM

Best answer selected by TheSicilianStyle.
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