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 Post subject: Bad NAND? Or bad read?
PostPosted: September 30th, 2020, 6:41 
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Joined: October 20th, 2014, 5:25
Posts: 138
Location: Sweden
For the sake of learning, I ripped open a 16GB CF-card which has 4x FT32G08UCT1-B7 and Phison PS3016-P9 on it. When trying to read the ID of the chips I got basically "00000000" or "2121212121" or similiar. There's no exact match for the chip in the db but FT32G08UCM1-15 seems to be closest so I used that one. Dumped all four chips without any problem.

However, I do run into problems when I check the dumps in bitmap viewer. Image 0 looks like this:

Attachment:
Screenshot_4.png
Screenshot_4.png [ 436.96 KiB | Viewed 16220 times ]


Image 2 looks like this:

Attachment:
Screenshot_3.png
Screenshot_3.png [ 358.93 KiB | Viewed 16220 times ]



Is Image 0 a dead chip, or has there been some error during the dump?

Image 2 shows a lot of bit-errors in the SA. Is that because of a bad dump?


(VNR 2.4)


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 Post subject: Re: Bad NAND? Or bad read?
PostPosted: September 30th, 2020, 12:31 
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Joined: August 15th, 2006, 3:01
Posts: 3464
Location: CDRLabs @ Chandigarh [ India ]
Hi ,
Please Post Post Photos Of Device And NAND Flash ,You Need To Update Version Of VNR to 3.9 ,Speak To Katarina Please .You Said 4 Chips Or 2 Chips ? . Are There 2 Parts Per Each 4x Chips or 4x Parts Per 2x Chips .

PS : Its Very Interesting To See This Controller ,I Have Always Seen SM2236 Under Its Own Name Or Sandisk Name

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 Post subject: Re: Bad NAND? Or bad read?
PostPosted: October 1st, 2020, 7:22 
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Joined: October 20th, 2014, 5:25
Posts: 138
Location: Sweden
It's four physical chips, all marked FT32G08UCT1-B7.

And I cannot upgrade to VNR 3.x, I'm kind of stuck with 2.4.


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 Post subject: Re: Bad NAND? Or bad read?
PostPosted: October 2nd, 2020, 0:33 
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Joined: September 8th, 2009, 18:21
Posts: 15461
Location: Australia
Google suggests that these are remarked by Kingston. The 64Gbit versions are claimed by some to be Toshiba chips.

https://www.insidegadgets.com/2013/07/02/inside-the-kingston-60gb-ssdnow/
https://proclockers.com/review/kingston-ssdnow-v300-128gb-solid-state-drive-review/

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