ohjeongwook / dumpflash

Low-level NAND Flash dump and parsing utility
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Toshiba SLC 2048/128 junk data #12

Open twisted89 opened 6 years ago

twisted89 commented 6 years ago

I'm attempting to read the following nand but I seem to mostly get junk data with no sign of a file system or bootloader. https://business.toshiba-memory.com/info/docget.jsp?did=14828&prodName=TC58NVG0S3HTAI0

I'm not sure if the nand is faulty or there's an issue with reading so any help would be appreciated.

I had to make some manual changes to the code to support the nand as ONFI is not supported and the OOBSIZE was wrongly calculated as 64 instead of 128.

With those changes I get this https://drive.google.com/file/d/1-R9nMX1x8D7rOnIg0i6P8rmleL8jthsb/view?usp=sharing

From the information I can gather the bad block check is at 0x00 in page 0 or page 1 of a block so page_data[self.PageSize] != 0xff:

which results in a massive amount of bad blocks. Also, reading in non-seq mode is the only way to get data, with seq mode enabled only 00's are returned.

blacklisted786 commented 6 years ago

@twisted89 can you drop me a mail working on the same thing?

is you r dump defo good as i have also downloaded mega

blacklisted786 commented 6 years ago

we have to achive a read as you are doing but at the same time the dum is encrypetd we need to asses this as well

there is hope on stackexchage but ...

dgiese commented 5 years ago

Any update for this issue? Have the same problem with Toshiba ...

blacklisted786 commented 5 years ago

from my side no update no progress so far not sure about about the opening post as he gone under radar.

may i ask or email if u wish what item you are reading? as i have couple of suggestion for you.

dgiese commented 5 years ago

Hey, sure, you could send me a mail. Would be happy about it: dgiese[at]mit.edu

blacklisted786 commented 5 years ago

mail sent

twisted89 commented 5 years ago

http://www.haxorware.com/forums/showthread.php?tid=6860&pid=36464#pid36464