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Heavily damaged Sandisk monolith 64GB
http://forum.hddguru.com/viewtopic.php?f=10&t=44710		 Page 1 of 1
Author:  bos [ October 2nd, 2024, 2:52 ]
Post subject:  Heavily damaged Sandisk monolith 64GB
I'm working on a monolith (in VNR) that's got quite a lot damaged blocks (0.5M of 8.8M), and unfortunately they are all spread out and not located in a single area. 6% damage doesn't sound much but as for now it's not possible to recover a single photo from it, not even with a carver. Been trying Re-reading for two days and some blocks can be read compared to before but it's awfully slow.

Is there anything I can do that will help the monolith give me its data? Will a decrease in speed increase chances of re-reading?

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Author:  Lardman [ October 2nd, 2024, 5:03 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
Want to swap for my 64GB sandisk ? - It has 27GB of read errors, Im about to give up trying with it.

Drop your voltage to around 2.8v and give it a bit of a warm up to around 110c.
Author:  melvin [ October 2nd, 2024, 5:27 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
Try setting RR for different blocks. Choose a few each time. Also read only blocks with data. A little warm/cold air can improve reading too.
Author:  arvika [ October 3rd, 2024, 1:25 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
What is the ID?
Author:  bos [ October 4th, 2024, 2:37 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
arvika wrote:
What is the ID?


453EAAA27E
Author:  arvika [ October 4th, 2024, 3:05 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
Try FE RR Sandisk v1. This chips usually can be corrected without problem.
Author:  p_patryk [ October 4th, 2024, 4:28 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
Go to the configuration window and make sure, the flag “Sandisk/Toshiba VSC” is checked. You will find it below Protocol settings.
Author:  Gregory [ October 4th, 2024, 5:57 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
You have "Read Retry not found" - so you chose the wrong read retry - it has no right to correct your dump. VNR read retry for Sandisk are: RR8, RR9, RR10, RR11.
Author:  bos [ October 4th, 2024, 5:59 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
arvika wrote:
Try FE RR Sandisk v1.

I have no idea what that means.
Author:  Lukas [ October 4th, 2024, 6:01 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
bos wrote:
I have no idea what that means.

https://www.youtube.com/watch?v=5bxg5O4EdcU
Author:  Gregory [ October 4th, 2024, 6:03 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
bos wrote:
arvika wrote:
Try FE RR Sandisk v1.

I have no idea what that means.

He mean Flash Extractor and you have VNR.

Just do what I write, ignore other posts :)
Author:  Sasha Sheremetov [ October 4th, 2024, 17:14 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
If you right click on ECC - there's a "hidden" option - RR diag report.
Just run it, save file and send it to our Support team. We'll check whether RR works at all.
Author:  bos [ October 5th, 2024, 4:48 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
It seems RR-11 works quite well, but what I don't understand is that if I run "Reread dump" it says 489k dead blocks, but if I use "Reread data blocks" it says 128k dead blocks. That's quite a difference.

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Author:  melvin [ October 5th, 2024, 5:21 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
Rered dump works on the whole dump. Reread blocks with data as it says - only blocks with data based on XOR. That's why it is good to reread blocks with data only. Unless you use SLC blocks or any other that have translation tables.
Author:  bos [ October 5th, 2024, 6:24 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
So empty blocks that are dead won't affect File assembler, for example?

If that so then it's good since it means around 300k dead blocks are empty.
Author:  melvin [ October 5th, 2024, 8:40 ]
Post subject:  Re: Heavily damaged Sandisk monolith 64GB
These are not only dead blocks. Might be never used ones too. Also blocks with FW and other. Also it doesn't mean that 300k blocks are empty. They may have file structures inside, SLC, cache etc.
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