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jeremyb



Joined: 09 Dec 2008
Posts: 1698
Location: RecoverMyFlashDrive.com Bridgeport, CT, USA

PostPosted: Thu Oct 01, 2020 0:05    Post subject: Monolithic UFD - 2c a4 08 32
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Might have BB, needs layout, probably needs RR (I know the chip supports it)
I'm just scratching my head in confusion with this dump..

Please help kindly Mr.Sergey

Uploading Dumps
Unknown 7x3 - 32GB - 2c a4 08 32 - Small.jpg
jeremyb



Joined: 09 Dec 2008
Posts: 1698
Location: RecoverMyFlashDrive.com Bridgeport, CT, USA

PostPosted: Thu Oct 01, 2020 1:12    Post subject:
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Сергей



Joined: 26 Aug 2005
Posts: 18864

Flash-Extractor developer

PostPosted: Fri Oct 02, 2020 3:03    Post subject:
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Xor 21cd

Other parameters i dont know

Select layout
FC1178 1083_1079 Xor 21cd_128

Jump with block size = 0x2400000 down from zero
You will find many blocks that starts from zeros or FF
But at some place become random data
This looks like software bad bytes
But when i cut bytes at this place next data not become unxored (zeros or ff)


Software Bad Bytes
Block 2304
Group 1
arvika



Joined: 18 Nov 2009
Posts: 2038
Location: Poland

PostPosted: Fri Oct 02, 2020 3:20    Post subject:
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Dump quality is very bad. Big shifts in page. Jeremy must make better dump.
arvika



Joined: 18 Nov 2009
Posts: 2038
Location: Poland

PostPosted: Sat Oct 03, 2020 14:00    Post subject:
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Layout
FC1178 1154_1150
jeremyb



Joined: 09 Dec 2008
Posts: 1698
Location: RecoverMyFlashDrive.com Bridgeport, CT, USA

PostPosted: Sat Oct 03, 2020 17:39    Post subject:
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New dumps uploaded...

I think FC1178 1154_1150 Xor 21cd_128 is a partial match.

You can see ExFAT headers here but no real data:
0x8555c000

Thoughts???
arvika



Joined: 18 Nov 2009
Posts: 2038
Location: Poland

PostPosted: Sat Oct 03, 2020 17:45    Post subject:
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Yes, I think xor is 21cd.
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Last added
PS2251-50-F   98 d7 94 32   1x1   v2 IS903   89 84 64 3c   2x4   v4 FC1179   89 c4 08 32   1x1 Monolith Micro SD_37   45 4c 98 a3   1x1 FC1179   2c 44 44 4b   1x1 SM2246XT H AA   45 3a 94 93   4x4   v2 IS917   2c a4 e5 3c   2x2 DM8261   98 d5 98 b2   1x1   Ref Monolith Micro SD_36   ec de 98 ce   1x4 Monolith USB_90   45 3e 98 b3   1x1
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