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Robi
Joined: 19 Oct 2007
Posts: 308
Location: Ljubljana, Slovenia
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 Posted: Wed Mar 18, 2009 14:45 Post subject: SanDisk 20-82-00162-1, Controller SWAP
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Hello Segey.
I have SanDisk 20-82-00162-1 with 1x SDNTLLBHSM-4096. All 4GB of data is on 1st bank of the memory chip. I can't find FAT, FAT dir or half FAT dir. Any ideas?
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Сергей
Joined: 26 Aug 2005
Posts: 20281
Flash-Extractor developer
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Posted: Wed Mar 18, 2009 14:59 Post subject:
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if no half-dirs, then flash is crypted
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Robi
Joined: 19 Oct 2007
Posts: 308
Location: Ljubljana, Slovenia
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Posted: Wed Mar 18, 2009 17:13 Post subject:
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OK, thank you for your help.
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Robi
Joined: 19 Oct 2007
Posts: 308
Location: Ljubljana, Slovenia
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Posted: Mon Mar 30, 2009 14:09 Post subject:
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Ok there are some new developments with this case. I bought another SanDisk USB key the same as one that doesnt work. I opened the new one and the board is a bit different, but controller chip looks the same. Here are the numbers from old and new chip.
OLD:
20-82-00162-1
S822-P42168.00
NEW:
20-82-00162-1
S829-PB1493.00
Does any one have any idea if moving the memory chip to new usb key will work or not? I dont want to destroy a working usb key if there is no way this could work.
Here is the picture of the old one and the new one. New one is on top of the picture.
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jeremyb
Joined: 09 Dec 2008
Posts: 1950
Location: RecoverMyFlashDrive.com Bridgeport, CT, USA
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Posted: Mon Mar 30, 2009 20:28 Post subject:
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Swapping the memory chip won't work, the key is stored in the controller. I've never had much luck swapping the controller and memory chip, my soldering skills aren't that good 
Only way data is recoverable is if there was a component failure on the bad drive, you could fix the component.
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Robi
Joined: 19 Oct 2007
Posts: 308
Location: Ljubljana, Slovenia
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Posted: Tue Mar 31, 2009 12:15 Post subject:
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| jeremyb wrote: | Swapping the memory chip won't work, the key is stored in the controller. I've never had much luck swapping the controller and memory chip, my soldering skills aren't that good
Only way data is recoverable is if there was a component failure on the bad drive, you could fix the component. |
So you are telling me, I HAVE TO use memory and controller from broken USB key?
Ok any idea what should I do? I have a guy with great soldering skills, and I can use him 
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jeremyb
Joined: 09 Dec 2008
Posts: 1950
Location: RecoverMyFlashDrive.com Bridgeport, CT, USA
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Posted: Tue Mar 31, 2009 21:18 Post subject:
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| Robi wrote: | | jeremyb wrote: | Swapping the memory chip won't work, the key is stored in the controller. I've never had much luck swapping the controller and memory chip, my soldering skills aren't that good
Only way data is recoverable is if there was a component failure on the bad drive, you could fix the component. |
So you are telling me, I HAVE TO use memory and controller from broken USB key?
Ok any idea what should I do? I have a guy with great soldering skills, and I can use him |
What i'm saying:
1. The key used to crypt the data is stored in the controller.
2. Swapping the memory chip won't work.
3. Swapping the controller and memory chip "may theoretically" work but I have never successfully done it, everyone I've talked to said they couldn't get it to work, perhaps my/their soldering skills aren't good enough.
4. Repairing the PCB is the only way I've been able to recover data from crypted SanDisks.
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jeremyb
Joined: 09 Dec 2008
Posts: 1950
Location: RecoverMyFlashDrive.com Bridgeport, CT, USA
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Posted: Wed Apr 01, 2009 4:25 Post subject:
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Today I got a crypted SanDisk in which was snapped in half, it had an older 20-99-00121-1 controller. I was able to swap the controller and NAND with an identical board and it worked.
It used a QFP package vs PLCC or BGA so it was much easier to swap.
I updated my SanDisk Guide.
http://forum.soft-center.ru/viewtopic.php?t=1337
I'll write a manual on repair sandisk when I have enough material.
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Robi
Joined: 19 Oct 2007
Posts: 308
Location: Ljubljana, Slovenia
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Posted: Wed Apr 01, 2009 11:53 Post subject:
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OK, thanks for your help.
Im looking forward to the manual
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Amarbir
Joined: 19 Nov 2011
Posts: 2
Location: India [ North ]
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Posted: Sat Dec 17, 2011 17:50 Post subject:
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| jeremyb wrote: | Today I got a crypted SanDisk in which was snapped in half, it had an older 20-99-00121-1 controller. I was able to swap the controller and NAND with an identical board and it worked.
It used a QFP package vs PLCC or BGA so it was much easier to swap.
I updated my SanDisk Guide.
http://forum.soft-center.ru/viewtopic.php?t=1337
I'll write a manual on repair sandisk when I have enough material. |
Jeremyb ,
I Have The Same Issue ,Shall i Try Repairing The Board .I think The Nand Flash Has Some Water Damage On the Ending side Of The PCB
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jeremyb
Joined: 09 Dec 2008
Posts: 1950
Location: RecoverMyFlashDrive.com Bridgeport, CT, USA
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Posted: Sat Dec 17, 2011 22:39 Post subject:
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I would try swapping the controller and NAND to an identical PCB. If that isn't possible then repair the PCB. The trick with water damage is that if the controller is shorted out your out of luck | |
