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 Post subject: Seagate 7200.12 not detecting in bios, size 0 after reset
PostPosted: June 25th, 2018, 12:51 
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Joined: June 25th, 2018, 11:45
Posts: 2
Location: India
hello guys,
My Seagate ST31000528AS 7200.12 1TB CC46 hard disk suddenly disappeared from bios on one fine day.
It still powers up, spins nicely and there is no ticking or unusual noise during start or while running.
I cleaned the PCB terminals but still no relief.

So I tried to check it using USB-ttl and I was able to communicate it with that.
I was able to power up and power down it using F3.

However it was not allowing me to reset SMART using N1
and was throwing below error in loop
Code:
LED:000000CC FAddr:0024E485


After reading this post http://forum.hddguru.com/viewtopic.php?p=166981#p166981
I checked NRGL using V40 and it was empty.
So I thought it will be safe to rebuild glist (F3 T>m0,2,2,,,,,22) and then reset smart
I took log of the as many lists as I could, I have attached it here.

Still I thought whether I should open the pandora box or not for full half an hour and then
F3 T>m0,2,2,,,,,22
and then F3 1>N1
which went on smoothly,
after smart reset, the disk appeared on BIOS and Disk Management however its showing size 0
the V1, V3 lists now has huge size which were previously empty.

Now is there way to pack the monster back in the box ?
will it make it worse if I try N1 again ?


Attachments:
File comment: after reset
hdd-after-fix.txt [146.7 KiB]
Downloaded 91 times
File comment: F3 log before reset
hdd-log.txt [82.68 KiB]
Downloaded 87 times
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 Post subject: Re: Seagate 7200.12 not detecting in bios, size 0 after rese
PostPosted: June 25th, 2018, 15:21 
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Joined: December 19th, 2006, 8:49
Posts: 9510
Location: Portugal
Hi there !

BIG question, do you need the data on the drive or not ?

If you don't need the data just replace the drive with a new working one and don't buy Seagate.

If you do need the data you are in for pain ...

This is a 7200.12 drive and the majority of those drives DO HAVE entries on the NON-RESIDENT G-LIST ...

Maybe ... You were not able to see those entries because they were not loaded when you issue the command ...

You should NEVER use F3 T>m0,2,2,,,,,22 on a 7200.12 drive.

If you do need the data on this drive please do STOP playing with it and send the drive to a reputable data recovery firm ....

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 Post subject: Re: Seagate 7200.12 not detecting in bios, size 0 after rese
PostPosted: June 26th, 2018, 1:41 
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Joined: June 25th, 2018, 11:45
Posts: 2
Location: India
is it possible that only p-list V10 will populate but not the nrgl ?


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 Post subject: Re: Seagate 7200.12 not detecting in bios, size 0 after rese
PostPosted: June 26th, 2018, 10:53 
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Joined: December 19th, 2006, 8:49
Posts: 9510
Location: Portugal
sameer wrote:
is it possible that only p-list V10 will populate but not the nrgl ?


Again, best option for you now is to find someone that can help you out !!!

It's hard to tell what did happen now without having the drive to check.

If you insist in doing-it-yourself you will end up without data.

AGAIN - DO YOU NEED THE DATA ON THE DRIVE OR DO YOU WANT TO FIX THE DRIVE ONLY ?

There are some commands that you can try to "fix" the drive but ALL SECTORS WILL BE FORMATED AND ALL DATA WILL BE GONE.

Also you can try to regen the translator with the "CORRECT" command and see if you can gain LBA access even if partial .

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