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fzabkar · Deadharddrive regular +3 Joined: 02 Apr 2010 Posts: 210

Sorry, I didn't see your reply in my email.

Can you remember which way the chip was installed on the PCB? Pin 4 would be connected to ground. Therefore, a continuity test with the SATA power ground should tell you which corner is pin 4.

I believe there is a metal shield under the IC, and I believe it is connected to ground. If so, then this may allow access to the data on the chip.

1delo · Deadharddrive regular Joined: 03 Dec 2010 Posts: 10

fzabkar · Deadharddrive regular +3 Joined: 02 Apr 2010 Posts: 210

You MUST install the chip in its original orientation.

To help you any further, I need to know the placement of the chip on the board.

In any case your best course of action would be to seek the assistance of someone with a chip programmer. Hopefully they can retrieve the data and program a replacement chip for you.

Edit:

Here is a photo of your board:
http://www.ledisquedur.com/img/p/84-72-thickbox.jpg

Pin #1 is at the bottom right corner of U12. Notice the dot on the PCB, and the semicircular notch in the package outline, also on the PCB.

Pin #4 is near C79. That's the ground pin. Now can you tell us which corner of your chip is damaged?

1delo · Deadharddrive regular Joined: 03 Dec 2010 Posts: 10

fzabkar · Deadharddrive regular +3 Joined: 02 Apr 2010 Posts: 210

Pin #4 is the ground pin. It is connected to the metal shield that was exposed by the damage.

Pin #3 is /WP (Write Protect). It merely controls whether data can be written to the chip.

The good news is that you should be able to read the contents of this chip by wiring the shield to ground and ignoring the WP pin. Then you can program a replacement chip with the extracted data. An electronics shop with a device programmer should be able to do this for you.

I believe it should also be possible to use the chip as is, provided that you carefully solder a ground wire between the shield and circuit ground.

1delo · Deadharddrive regular Joined: 03 Dec 2010 Posts: 10

Kit · Deadharddrive regular +2 Joined: 10 Nov 2008 Posts: 56

My opinion, that chip is broken and you can not use it. Better way to find same board from same drive. But this chip has special information which called adaptives, so you lost this information and it is mean that not each board will work with you drive. May be you need change 3 or 4 board to find good one for your drive.

sunnydreamspace · Deadharddrive regular +5 Joined: 04 Jan 2009 Posts: 540

3~4 pcs cost enough for DR pro operation. and do you think 6 pcs you will find out working one? better is fine out someone for help save money. i can help you this matter. you can send me entire drive for process or you can find out some one has programmer and i send some version of this model to you for test that you no need to buy same model drive for check. Smile

second way free share please email or skype me if need any help.
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fzabkar · Deadharddrive regular +3 Joined: 02 Apr 2010 Posts: 210

[quote="1delo"]Do I just solder a wire from the shield inside the chip to the pin on the motherboard with which it would have contacted with? Is that the best/correct way to do it? I'd like to do this myself if possible and then connect the hd to a computer and transfer the contents to another hd. Would that be possible?[/quote]
Yes, that's the way I would do it, if I didn't have access to device programmer. However, IMO it would be best pay someone to copy the chip. There should be people who would do this for less than $50.