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 Post subject: Interesting NAND chip
PostPosted: October 21st, 2015, 10:09 
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Joined: May 9th, 2012, 7:55
Posts: 121
Location: Western Europe
I have received a case of a SD card to recover, once i open the card i see this nand connected to the board upside down, yes pads up and epoxy everywhere, unfortunately i don't have any picture where the nand was connected, there is a line of pads that was "removed", there are important connections in this line, i have tried to connect it to the reader but no luck so far, have anyone seen this kind of NAND?


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File comment: connection side
DOWN.jpg
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File comment: upside
UP.jpg
UP.jpg [ 675.63 KiB | Viewed 8173 times ]
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 Post subject: Re: Interesting NAND chip
PostPosted: October 21st, 2015, 10:44 
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Joined: December 4th, 2012, 1:35
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Location: Adelaide, Australia
Looks like an LGA 52

was there any other chips? what did the pcb look like, the chip there wasn't just for structural rigidness but not functional was it?
what was connected, were there wires going from PCB to the pads?

I have seen some strange things, but this one is weird. Would love to see pcb photos

I have got some strange ones lately, looks like anything that falls in the bin gets fished out and made to work however they can get it to - waste not, want not.

and of course it is a SanDisk chip! the refurb kings


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 Post subject: Re: Interesting NAND chip
PostPosted: October 21st, 2015, 10:55 
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Yes it's a LGA-52 but the pads missing prevents me from reading the chip, and yeah it's sandisk, to be able to take the chip out i had to damage the pcb, i will upload a picture soon.


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 Post subject: Re: Interesting NAND chip
PostPosted: October 21st, 2015, 17:38 
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Location: Adelaide, Australia
where was the chip-pcb connection? was it wired or was the top of the chip ground off and connected top of chip-pcb? I cant picture how it was actually electrically connected to the PCB if it was glued upside down


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 Post subject: Re: Interesting NAND chip
PostPosted: October 21st, 2015, 17:44 
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Joined: October 24th, 2009, 15:22
Posts: 917
Location: Poland
Hmm, it should be TLGA with cutted one of bank. Are you sure that you check it carefully?

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 Post subject: Re: Interesting NAND chip
PostPosted: October 22nd, 2015, 3:22 
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Joined: May 9th, 2012, 7:55
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Location: Western Europe
I carefully cleaned the nand and see no broken tracks at all, i'm still checking how this was connected.


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File comment: There you go
IMG_3685.jpg
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 Post subject: Re: Interesting NAND chip
PostPosted: October 22nd, 2015, 4:02 
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Joined: October 24th, 2009, 15:22
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Location: Poland
It simle, by wifi :D

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 Post subject: Re: Interesting NAND chip
PostPosted: October 22nd, 2015, 5:11 
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Joined: May 9th, 2012, 7:55
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Location: Western Europe
hahahahahaha, it's a brand from a supermarket "kruidvat" the customer have important files in it, if you have important files to save, why buying the cheapest crap?


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 Post subject: Re: Interesting NAND chip
PostPosted: October 22nd, 2015, 10:24 
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Joined: July 30th, 2012, 3:37
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Location: Fairfield, CT USA
Weird, extra two pads in the middle, I wonder if they're the missing RE-1 and RB2-1 pins, assuming Bus #2 isn't used.

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