I've posted this question on Stack Exchange, partially because it
allows the pretty pictures to be embedded.
I rather suspect that if I get any good answers that they'll come from
here BUT good answers from anywhere are welcome.
(Wouter, Olin and Ollie, at least are on S so ...)


Pretty version with pictures here:

       http://electronics.stackexchange.com/questions/22543/reading-a-micro=
n-27f32g080aa-nand-flash-ic

Images courtesy of SE



          [1]: http://i.stack.imgur.com/M5Yto.jpg

          [2]: http://i.stack.imgur.com/4szty.jpg
_________________

I wish to find the quickest / easiest / cheapest way to read a 4GB
NAND Flash IC in a damaged USB memory stick. The onboard controller IC
is dead.The Flash IC may also be dead but I will assume it isn't until
it becomes otherwise obvious.

Reading it could involve

(1) Making a custom reader,

Maybe not a wholly silly idea as connections to Flash are fewish (8
data and a handful of controls.)

How likely it is that I could easily access the data if I did this I
don't yet know. Obtaining a bit image is bearable worst cvase BUT I'd
far far rather have something that "sees" the files system and files
as was. Of course.

(2) soldering in a new controller IC

I do not yet know if these are in common use in other devices. Sample
of 1 checked so far had 100% non-match. There may be an industry
standard, part number irregardless, I know not (yet).

 [SK6211. QFP48. Outline description here]


(http://www.skymedi.com.tw/english/P_Items.asp?P_ID=3D6&T_ID=3D2) and

 [Datasheet here]


(http://www.google.co.nz/url?sa=3Dt&rct=3Dj&q=3Dsk6211%20skymedi&source=3Dw=
eb&cd=3D5&ved=3D0CEIQFjAE&url=3Dhttp%3A%2F%2Fwww.elektroda.pl%2Frtvforum%2F=
download.php%3Fid%3D315088&ei=3Df-7JTt20J-SwiQf5obXpDw&usg=3DAFQjCNEnLNQaMR=
sgeFGRHcDA9xR_XJjDaw&sig2=3DNrZDwT9709cKQjSenWxsYw&cad=3Drja).

Or

(3) Removing the Micron 29F32G080AA 32 mbit NAND Flash IC.
 Datasheet not yet located.

Markings VERY dim. Here is "enhanced photo image of markings".


_______________

SO

Does anyone have any suggestions how I might BEST read this memory
with original format, or at all?

Any thoughts on source of 6211, commonality with other parts, ability
to use "any old" NAND Flash reading IC  etc.

Any hints.


----------------------------------------------


**Background:**

A good friend who had been warned about the need for data backup
failed to heed the warnings as has "lost access" to an extremely
valuable set of files stored on a USB memory stick. She is studying to
be a teacher and the files are lesson plans and other material created
over a long period of time.

The USB memory stick was physically severely damaged by being knocked
sideways while plugged into a USB port. Apparently attempts were made
to read it by pushing it together. When it got to me 3 of the 4
connections between PCB and connector were broken. I resoldered these,
expecting there to be a good chance of restoring operation.

 When plugged into a USB port the memory stick draws a large current
(probably port limited) and the controller gets VERY VERY hot - I
first discovered this by burning myself badly on the IC. The actual
memory IC is on the opposite side of the PCB. It also appears to get
hot BUT this may be due to the very large Wattage going into the
controller IC. Desoldering will happen.

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