Seagate Barracuda 7200.12, LBA = 0

[edsel]

I have a ST31000528AS that does not show up in BIOS.
Drive comes ready but shows LBA capacity 0.

HDD parameters

CONFIGURATION GENERAL INFORMATION:
ATA device
Fixed device and/or controller

Logical cylinders count..................................... 16383
Logical sectors per track................................... 63
Logical heads count......................................... 16
Model....................................................... ST31000528AS
Serial number............................................... 9VP3128W
Firmware.................................................... CC44

Maximal block size for READ/WRITE MULTIPLE commands......... 16

Features
Stop Timer Value
IORDY............................................. Supported
LBA Mode.......................................... Supported
DMA Mode.......................................... Supported

Current Logical Parameters
Cylinders......................................... 16 383
Heads............................................. 16
Sectors........................................... 63
Capacity.......................................... 16 514 064 Sectors (8 063.5 Mb)
Capacity available in LBA Mode.................... 0 Sectors ( Mb)
Capacity available in LBA 48 Mode................. 0 Sectors ( Mb)

Has anyone a suggestion how to solve this problem?

[fzabkar]

According to several professional members of this forum, the 7200.12 drives respond to the same DIY fix as 7200.11 models.

[dick]

Please don't attempt to try the same fix on a 7200.12 drive!
As I understand it will leave the drive in error condition.
The symptoms are the same but the fix is different???

[fzabkar]

Please don't attempt to try the same fix on a 7200.12 drive!
As I understand it will leave the drive in error condition.
The symptoms are the same but the fix is different???

Some of your colleagues disagree:
seagate-barracuda-7200-stopped-working-t14154.html#p92485

[hddguy]

the commands are the same, but the application of the commands on different platforms can have different results, some not so good results.

Also, another thing that should be considered is an additional fault in the translator that renders the disk partially accessible only. This has become a big problem recently, and a lot of this problem develops from DIY repairs. Not to say that the commands were wrong, but maybe just not implemented correctly. If this problem occurs, is very complicated and lengthy to repair from.

If DIY is the only way, then data cannot hold data of great importance, and for this reason you can try it - you may get lucky, but if could also go the other way.

And also in the thread you mention I see only one member saying they are the same, so is more of an opinion than a fact.

[edsel]

Thank you very much for all your comments.

I used the terminal command:
F3 T> m0,2,2,0,0,0,0,22 Enter

After switching off and on, the drive showed again its original 1 953 525 168 LBA.

Now I am imaging the drive and all files are back.

[Nick_CT]

Consider yourself lucky. Well done.