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 Post subject: mq01abd100h unreadable
PostPosted: September 19th, 2017, 21:06 
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Joined: March 24th, 2010, 21:08
Posts: 73
Location: California
Toshiba hybrid drive mq01abd100h. Drive spins up, sounds fine, SMART diagnostics report health OK, no bad or pending sectors. And yet data is completely unreadable. From searching around it appears to be a relatively common issue on these models, possibly a NAND failure? Anyone have success with these? Is a PCB swap with ROM transfer possible on these hybrid drives?


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 Post subject: Re: mq01abd100h unreadable
PostPosted: September 20th, 2017, 4:19 
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Joined: September 8th, 2009, 18:21
Posts: 9909
Location: Australia
The following thread suggests that, at least in some SSHDs, one could perform a secure erase on a donor drive, thereby clearing the donor's NAND cache, and then transfer the patient ROM to the donor PCB.

https://www.data-medics.com/forum/st100 ... t1732.html

Are you able to read the ROM?

Would it be worthwhile to check the PCB voltages? I could help you with that if you could provide a detailed photo.

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A backup a day keeps DR away.


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 Post subject: Re: mq01abd100h unreadable
PostPosted: September 20th, 2017, 16:54 
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Joined: March 24th, 2010, 21:08
Posts: 73
Location: California
Turns out there was a Carbonite backup so it was not necessary to recover data from the drive but I will file this idea away for a future case. The link seems to suggest P3K is required to perform the secure erase, any idea if there's another way?

Thanks as always!


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 Post subject: Re: mq01abd100h unreadable
PostPosted: September 20th, 2017, 17:04 
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Joined: September 8th, 2009, 18:21
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Location: Australia
Secure Erase is a standard ATA command.

http://cmrr.ucsd.edu/people/Hughes/secure-erase.html
http://cmrr.ucsd.edu/people/Hughes/docu ... aseWeb.zip

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 Post subject: Re: mq01abd100h unreadable
PostPosted: September 27th, 2017, 1:04 
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Joined: May 29th, 2011, 8:47
Posts: 73
Location: Russia
NAND is faulty. There's a solution.


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