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arvika



Joined: 18 Nov 2009
Posts: 2146
Location: Poland

PostPosted: Sat Dec 18, 2021 20:54    Post subject: [+] [LBA] FC1179
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32GB Flash

FC1179

1 - ID: 45 3c 98 b3 76 6b
1 - dump

page: 18336
block: 1152p / 1536p
sector: 1148_1144
XOR: Plane0: 843C72 - 77 -> F34B05, 64p
Plane1: B9F863 - 77 -> CE8F14, 64p


Plane0 (even) - ECC ok, bad bits at positions: 35673, 72282, 108923, 145532, but ECC algorithm is strong enough to correct it. Bad bits are at last byte of sector.

Plane1 (odd) - ECC wrong at two sectors after remove bad bytes 5723,5724,6869,6870. This plane also have bad bits at positions: 35673, 39552, 39561, 51168, 145532

LBA pattern probably help with cases:
http://flash-extractor.com/forum/viewtopic.php?t=12162
http://flash-extractor.com/forum/viewtopic.php?t=12164
http://flash-extractor.com/forum/viewtopic.php?t=12145
http://flash-extractor.com/forum/viewtopic.php?t=12131

Bad bits example I prepared before (moved to archive section)
http://flash-extractor.com/forum/viewtopic.php?t=12083

I'm afraid we won't run away from solution for bad bits problem. Many many new flash use FC controllers and bad bits Sad

Uploading dump.
FC_monolith.jpg
arvika



Joined: 18 Nov 2009
Posts: 2146
Location: Poland

PostPosted: Sun Dec 19, 2021 2:53    Post subject:
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Upload ready.
arvika



Joined: 18 Nov 2009
Posts: 2146
Location: Poland

PostPosted: Mon Dec 20, 2021 22:05    Post subject:
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New dumps uploaded.
Сергей



Joined: 26 Aug 2005
Posts: 19185

Flash-Extractor developer

PostPosted: Tue Dec 28, 2021 10:04    Post subject:
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Can unxor now

Use FE_1067

Job_0.txt with VT attached

Job_0.rar
 Description:

Download
 Filename:  Job_0.rar
 Filesize:  1.93 KB
 Downloaded:  9 Time(s)

Сергей



Joined: 26 Aug 2005
Posts: 19185

Flash-Extractor developer

PostPosted: Tue Dec 28, 2021 12:45    Post subject:
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Job_BN attached

It works :)

Job_BN.rar
 Description:

Download
 Filename:  Job_BN.rar
 Filesize:  513 Bytes
 Downloaded:  13 Time(s)

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