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Author Topic: Fastest Way To Jtag Dump A Nand?  (Read 44 times)

syntaxerror329

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Fastest Way To Jtag Dump A Nand?
« on: May 14, 2010, 07:49:00 PM »

Ya, i have not done it because i have a high speed USB reader but here is what you do.

You might want to find a guide. Here is the basic steps as i recall.

You read only first 50 blocks.

You flash xellous onto first 50 blocks.

You then read entire nand via Ethernet at warp speed.

A quick google search found me this guide

http://forums.xbox-s...howtopic=703757
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syntaxerror329

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Fastest Way To Jtag Dump A Nand?
« Reply #1 on: May 14, 2010, 09:04:00 PM »

QUOTE(linsonchan @ May 14 2010, 09:56 PM) View Post

i could try to make a usb/spi...

but regarding the xellous
is this possible?

how can I upload the XBR back to the unit?


That link i sent you seemed to have some good info. My understanding was you dump the first 50 blocks. Then flash Xellous then boot into xellous and you get get a complete nand dump thru some cool http interface. You can then replace the first 50 block of the full dump with the data you dumped at first and then you have a complete dump. You then make your XBR file the normal way and flash it through the Xellous HTTP interface.

But read that link i posted, it had better info like dumping the kv and config before you flash anything.
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syntaxerror329

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Fastest Way To Jtag Dump A Nand?
« Reply #2 on: May 14, 2010, 09:25:00 PM »

QUOTE(linsonchan @ May 14 2010, 11:10 PM) View Post

Yup, great  love.gif

im just lost at 1 thing though,

#  jasper_hack_bigblock_xellous.zip
# jasper_hack_xellous.zip

which of the 2 should I use on my 256?


I would think bigblock would work on both 256 and 512 versions
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linsonchan

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Fastest Way To Jtag Dump A Nand?
« Reply #3 on: May 15, 2010, 04:14:00 AM »

HELP!

just did a jtag on my 256, and have 2red 2greed then nothing displays... anyone here got some idea?

i did get to xell and xellous and update it following the guide....

does not boot now sad.gif
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Spegs12

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Fastest Way To Jtag Dump A Nand?
« Reply #4 on: May 15, 2010, 10:49:00 PM »

QUOTE(linsonchan @ May 15 2010, 12:41 AM) View Post

help... getting this error now...
E:\nand>nandpro falcon_hack_updxell.bin: -w16 kv.bin 1 1
NandPro v2.0d by Tiros

Could not open Virtual Nand Device File: falcon_hack_updxell.bin
Can not continue
tried renaming everything,....

_ i am trying my falcon unit for to test this.


Use Nandpro 2.0b.

QUOTE(linsonchan @ May 15 2010, 06:14 AM) View Post

HELP!

just did a jtag on my 256, and have 2red 2greed then nothing displays... anyone here got some idea?

i did get to xell and xellous and update it following the guide....

does not boot now sad.gif


kv.bin was not properly flashed. Reflash just the kv or remake xellous using nandpro 2.0b.
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moja

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Fastest Way To Jtag Dump A Nand?
« Reply #5 on: May 17, 2010, 07:00:00 PM »

[slaps head] Duh!  Thanks for this!  I was not looking forward to neither waiting 2 days for identical dumps nor plunking down ~ $50 for an Olimex flasher.  I only had to reflash my rawkv.bin through nandpro to get her up and running.  I am building and flashing my freeboot image now.  Thanks again!
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