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aurum · Officially active! Joined: 07 Jul 2010 Posts: 2

I have Seagate Barracuda 7200.11 500GB. powers up but is not recognized or able to access data. From research it seems to be common with the Barracuda line. In short, I need PCB 100466725 Rev A DLAJ-4 WITH WHITE STICKER CODE 100468974 J C9194LER. Thanks in advance for your help! Shocked

harddrivespecialist · Posted: Thu Jul 08, 2010 3:17 pm Post subject:

Hi! If your drive spins up, then you might have a problem with firmware, logical failure or physical damage inside a drive, but not your PCB.
If Seagate's PCB fails, drive usually does not spin up. I would suggest to get diagnostics done first and than move from there with recovery options.
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sunnydreamspace · Deadharddrive regular +5 Joined: 04 Jan 2009 Posts: 540

yeah. agree. it seems no the PCB problem. and it may can't done by yourself. it may FW even head problem. like ST3500410AS or 418AS normal have problem that hard drive is spin. command for fix bug won't help. i guess your hard drive may be is ST3500820AS something. please let me know if need any help. i can handle it. thanks.
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aurum · Officially active! Joined: 07 Jul 2010 Posts: 2

ST3500620as UNIT WAS A cERTIFIED rEPAIRED & LASTED 7 MOS.

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

See this thread for a possible DIY repair:

http://forums.seagate.com/t5/ATA-and-Serial-ATA-drives/Updated-firmware-on-a-bricked-hard-disk-but-not-working/m-p/51036#M19464