HDD GURU FORUMS
http://forum.hddguru.com/

Interesting NAND chip
http://forum.hddguru.com/viewtopic.php?f=10&t=32145		 Page 1 of 1
Author:  Izualim [ October 21st, 2015, 10:09 ]
Post subject:  Interesting NAND chip
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?

Attachments:
File comment: connection side
DOWN.jpg
DOWN.jpg [ 692.31 KiB | Viewed 8182 times ]
File comment: upside
UP.jpg
UP.jpg [ 675.63 KiB | Viewed 8182 times ]
Author:  HaQue [ October 21st, 2015, 10:44 ]
Post subject:  Re: Interesting NAND chip
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
Author:  Izualim [ October 21st, 2015, 10:55 ]
Post subject:  Re: Interesting NAND chip
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.
Author:  HaQue [ October 21st, 2015, 17:38 ]
Post subject:  Re: Interesting NAND chip
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
Author:  arvika [ October 21st, 2015, 17:44 ]
Post subject:  Re: Interesting NAND chip
Hmm, it should be TLGA with cutted one of bank. Are you sure that you check it carefully?
Author:  Izualim [ October 22nd, 2015, 3:22 ]
Post subject:  Re: Interesting NAND chip
I carefully cleaned the nand and see no broken tracks at all, i'm still checking how this was connected.

Attachments:
File comment: There you go
IMG_3685.jpg
IMG_3685.jpg [ 1.31 MiB | Viewed 8086 times ]
Author:  arvika [ October 22nd, 2015, 4:02 ]
Post subject:  Re: Interesting NAND chip
It simle, by wifi :D
Author:  Izualim [ October 22nd, 2015, 5:11 ]
Post subject:  Re: Interesting NAND chip
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?
Author:  jeremyb [ October 22nd, 2015, 10:24 ]
Post subject:  Re: Interesting NAND chip
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.
Page 1 of 1 All times are UTC - 5 hours [ DST ]
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/