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arvika



Joined: 18 Nov 2009
Posts: 1496
Location: Poland

PostPosted: Thu Nov 09, 2017 12:47    Post subject: [-] MicroSD - need new layout
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32GB MicroSD

1 - ID: ec de 98 de 94
4 - dumps

page: 9216
block: 256p
sector: 36_2272 -> 36_2048_224
XOR: GRID + XOR (maybe adaptive?)

Need new layout. ECC probably after XOR. Uploading dump.
arvika



Joined: 18 Nov 2009
Posts: 1496
Location: Poland

PostPosted: Fri Nov 10, 2017 2:36    Post subject:
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Upload done.
arvika



Joined: 18 Nov 2009
Posts: 1496
Location: Poland

PostPosted: Tue Nov 21, 2017 20:51    Post subject:
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Did you have a chance look at dumps?
Сергей



Joined: 26 Aug 2005
Posts: 16667

Flash-Extractor developer

PostPosted: Sat Nov 25, 2017 6:29    Post subject:
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Sector 36_1024_1248 or 36_2272

If sector have many zeros, ECC area also have many zeros
(MBR, empry FAT dirs sectors)

This is not common ECC scheme
I think this is self made ECC algo based on small size simple ECC codes
arvika



Joined: 18 Nov 2009
Posts: 1496
Location: Poland

PostPosted: Mon Nov 27, 2017 13:57    Post subject:
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Thank you for your work. Please close this case, maybe in future we will find solution.
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