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Bolo



Joined: 05 Dec 2017
Posts: 521
Location: 506F6C616E64

PostPosted: Sun Nov 07, 2021 0:48    Post subject: [-] UFD verbatim 8Gb - 0x45 3c 98 b3
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  • Flash type : UFD
  • Brand : Verbatim
  • Totall size: 8Gb
  • ID: 45 3c 98 b3
  • Banks: 1
  • Channel: 1
  • Page: 18336
  • Structure: 16*(1024_104)_31
  • Sector: 1128
  • Layout: SM3259_41 1128_31 Xor 17fe_258 bb


NOTES 2600:
1) Chip is written in pseudo SLC Mode - looks like refurbished case. I attaching to container normal dump + dump readed in SLC via NR. Additionally I think it will be good to implment SLC reading into NR similar as option DDR (so will be possible to thick untick and add to config SLC YES/NO). Implementation to this will solve many issues (we face SLC writes in many FC cases and other too) - I attached instruction how to add into FE to container, if need any help here let me know.

2) There are SW BB 0xFF (258group after extraction 1 from 3 pages becouse this pSLC.) but I'm not able to get correct SW BB cuts in FE (even they are 0xFF) due block in FE are 96p. Real size of this is 8GB, NAND is 32GB. Every 3 pages store this same data but memory must be reading in SLC mode - when readed in normal mode we get garbage: 1 page empty 2 and 3 pages are garbage data (you can check this in dumps uploaded).

3) After SW BB cut can use Block Mutate - if my calculation correct:
Block Mutate
Block 0xD88DC0
Cut 0x47A0/0x8F40
and then Block cut but even after this I'm not able to get correct ECC here.

4) Only little amount of data at start of dump (120 Gb packed into 1248 Mb)

Are you able to help here ?


# 06.11.2021 - Dump uploading
45_verbatim_ufd_8gb.jpg
Bolo



Joined: 05 Dec 2017
Posts: 521
Location: 506F6C616E64

PostPosted: Sun Nov 07, 2021 1:43    Post subject:
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Upload finished

P.S
CMD_A2.zip is readed via modified config as requested
jeremyb



Joined: 09 Dec 2008
Posts: 1746
Location: RecoverMyFlashDrive.com Bridgeport, CT, USA

PostPosted: Mon Nov 08, 2021 21:29    Post subject:
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To read in SLC mode, edit config and manually enter
Cmd = 05_E0

in Options
Before Read

SanDisk:
Cmd 0xA2

Hynix/Intel/Micron/Samsung:
Cmd 0xDA

Very simple..
Сергей



Joined: 26 Aug 2005
Posts: 19185

Flash-Extractor developer

PostPosted: Tue Nov 09, 2021 16:44    Post subject:
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Very strange case
Bolo



Joined: 05 Dec 2017
Posts: 521
Location: 506F6C616E64

PostPosted: Wed Nov 17, 2021 19:42    Post subject:
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Is there a hope for any data from here even with RAW ?
Сергей



Joined: 26 Aug 2005
Posts: 19185

Flash-Extractor developer

PostPosted: Sun Jan 02, 2022 16:24    Post subject: Re: UFD verbatim 8Gb - 0x45 3c 98 b3
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Bolo wrote:
Are you able to help here ?

Sorry, can not help with this case
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