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bryan



Joined: 16 Apr 2014
Posts: 937


PostPosted: Wed Aug 21, 2019 13:00    Post subject: [+] SanDisk 82-00387-A0 8GB 45 de 98 a2
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I could found layout

but i didn't know how to work.

ECC fixed

20-82-00511-1 14_2048_230 Xor C634_8I - 2000/2000
20-82-00511-1 14_2048_230 Xor C634_8I_WL - 2000/2000
20-82-00511-1 14_2048_230 Xor C634_32I - 2000/2000
20-82-00511-1 14_2048_230 Xor C634_32I RP - 2000/2000
20-82-00511-1 14_2048_230 Xor C634_32I_WL - 2000/2000
20-82-00515-5 14_2048_230 Xor C634_8I - 2000/2000
20-82-00515-5 14_2048_230 Xor C634_8I_WL - 2000/2000
20-82-00515-5 14_2048_230 Xor C634 16_2 - 2000/2000
Сергей



Joined: 26 Aug 2005
Posts: 17536

Flash-Extractor developer

PostPosted: Wed Aug 21, 2019 16:53    Post subject:
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First need find layouts that match by XOR
This controllers xor SA

Select layout
Select place with green ECC in middle of dump
ECC = Off
Set Jump size = 0x2000 (page size)
Press and hold ctrl + page_down
http://www.flash-extractor.com/manual/hex_editor/

Look on SA
if see random bytes, then xor not match

Do it some time. May be 10 seconds

Check all layouts with this method
bryan



Joined: 16 Apr 2014
Posts: 937


PostPosted: Thu Aug 22, 2019 5:35    Post subject:
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upload complete.

what do you mean random bytes?
Bolo



Joined: 05 Dec 2017
Posts: 252
Location: 506F6C616E64

PostPosted: Thu Aug 22, 2019 14:17    Post subject:
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@bryan: correctly unXORed SA will change only few bytes (header and LBN). In case if you choose wrong layout then SA are still XORed and whole SA is just pack of randon bytes (noise).
Сергей



Joined: 26 Aug 2005
Posts: 17536

Flash-Extractor developer

PostPosted: Thu Aug 22, 2019 22:06    Post subject:
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Good:
SA 70 26 88 09 ac 01 40 b4 c9 de 67 09 02 5a
SA 70 26 88 09 ac 01 40 b5 c9 de 67 09 02 5a
SA 70 26 08 0a ac 01 40 b6 c9 c2 67 09 02 5a
SA 70 26 08 0a ac 01 40 b7 c9 c2 67 09 02 5a
 
Bad:
SA ce ec 07 b0 87 a1 eb 66 4c 22 80 54 02 61
SA 0d b3 d7 7b 02 81 6e 47 42 39 cd 42 27 88
SA 8a 0c 77 e3 16 03 7a ca 99 35 30 54 55 ff
SA c5 73 de d2 44 0b 28 c3 41 53 d8 e3 77 44
Сергей



Joined: 26 Aug 2005
Posts: 17536

Flash-Extractor developer

PostPosted: Thu Aug 22, 2019 22:44    Post subject:
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Model attached
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