DESPERATLY looking for PCBs for my two SATA HDDs with the following details:

Seagate Barracuda 7200.11 500GB
ST3500820AS
S/N: 9QM3BYAD
P/N: 9BX134-568
FW: SD81
Date Code:08405
Site Code:KRATSG
Product of Thailand
Also on the label:
WWN: 5000C5000CC537EF
STX-ST3500320AS(B)

Western Digital WD2500KS-00MJB0
S/N: WCANKD410959
Date: 01 MAR 2007
DCM: DSBACT2AAN
PCB S/N: 2060-701335-005 REV A
Sticker S/N: 2061-701335-C00 AN XC 2W21 298J 7 0002330 7332

Also can someone please tell me a safe way to replace U12 ROM without damaging it ?
Thanks a million

Forgot about the Seagate Baracuda PCB serial:
PCB: 100466725 REV A DLAJ-4
white sticker: 100468972 H 7839MKSM

WD 2060-701335-005 REVA including ROM transfer:
http://www.hdd-parts.com/20091010.html

Seagate Barracuda 7200.11 500GB ST3500820AS 100466725 PCB 500 Circuit Board with Firmware Transfer:
http://www.onepcbsolution.com/seagate-b ... nsfer.html

http://www.hdd-parts.com/10110505.html

Can you describe the failure symptoms?

If you upload detailed photos, one of us may be able to help you repair your boards, or at least confirm that the problem isn't elsewhere. For example, Seagate's 7200.11 drives have a BSY firmware bug which cannot be fixed with a board swap.

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A backup a day keeps DR away.

search" swap ROM chip for data recovery" on youtube. i have both PCB in stock. and we charge free for swap these two PCB.

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data recovery service[/b]