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kikiki1



Joined: 11 Feb 2019
Posts: 3


PostPosted: Mon Feb 11, 2019 14:08    Post subject: Problem reading Samsung EVO+ MicroSD
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Hi,
I'm trying to read Samsung EVO+ microsd, I've used Ignore busy cause I didn't find the R/B.
the dump turned out to be bad i've attached a bitmap screenshot.
What is the problem here? Does anyone else have this problem?

ID - ECDE88BF

Thanks.
Сергей



Joined: 26 Aug 2005
Posts: 17175

Flash-Extractor developer

PostPosted: Mon Feb 11, 2019 19:22    Post subject:
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All dump is zeros?
Or there is places with data?

Please, add your FE key to forum profile
kikiki1



Joined: 11 Feb 2019
Posts: 3


PostPosted: Mon Feb 11, 2019 21:11    Post subject:
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there are blocks/partial blocks with data.
I don't have Flash Extractor key, I bought the NAND Reader.
Сергей



Joined: 26 Aug 2005
Posts: 17175

Flash-Extractor developer

PostPosted: Tue Feb 12, 2019 15:29    Post subject:
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Some memory chips have places with zeros in dump
This is normal for them
But i'm not sure about this one
If chip is empty on 95% then all dump will be zeros

I dont know
With monolith there can be many reasons why dump have zeros
kikiki1



Joined: 11 Feb 2019
Posts: 3


PostPosted: Tue Feb 12, 2019 17:26    Post subject:
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No all blocks contains zeros, I was talking about the bad bits blocks, there are blocks that contain the data that should be there but with some kind of NOT pattern for example the block in the screenshot should be all 0x77s, but it has 0x77 and ~0x77 aka 0x88, I heard there is a problem with Samsung evo+ microsd cards is that the problem?

also all the second part of the block are zeros in all of the dump, Its like the reader reads good some first part of the block but not the rest
Сергей



Joined: 26 Aug 2005
Posts: 17175

Flash-Extractor developer

PostPosted: Tue Feb 12, 2019 20:00    Post subject:
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I dont know

I'm sorry
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