JTAG Help! I think I killed my JTAG's KV/NAND?

H

hot_wired13

Full Member
Nov 16, 2004
45
6
Singapore
teajunkie said:
Then you could change the key in Jtag tool and the drive type.
Click to expand...
I don't have the original drive key since xellous reads it as all zeroes. What I do have is a sam_cfw.bin file from the seller.

I'm confused now - does that mean I need to re-create a KV using the JTAG tool or what? And what do u mean by change the key inside? From what to what?
 
Fisticuffs

Fisticuffs

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Mar 14, 2011
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Arizona, US
Ask Him again for the original nand.bin, Not the updflash.bin, You'll need it for jtag tool to edit the kv_info, Not sure if you can get the kvinfo from the updflash.bin,

To edit the dvd info, First open the nand, Then where it says cpu key, Put yours there, Then click get info, Then you'll beable to edit the dvd key and what type of drive it is you got from jf from your samcfw.bin, Then click apply and extract the kvinfo and save it

Also here's some reading material
http://www.team-xecuter.com/forums/showthread.php?t=54802
http://www.team-xecuter.com/forums/showthread.php?t=54531
 
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H

hot_wired13

Full Member
Nov 16, 2004
45
6
Singapore
Awesome, thanks for the reading material. Really appreciated! Glad to learn a more complete picture of things rather than just "do this" and "do that".

I'm curious though - previously, I accidentally flashed my stock nand.bin onto the NAND. Why doesn't it even boot up like an "original" xbox360? Is it due to the JTAG wiring in place?

And also, from the photos, I can't see any JTAG wiring (or maybe I'm missing something?)
 
Martin C

Martin C

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Jan 10, 2004
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syst3merror said:
looking at the picture the only thing I can assume is that the wiring is underneath the motherboard instead of on top....I use to wire that way when I first started
Click to expand...
When I was using Diodes, that's how I did all of mine ;)
 
TilVl

TilVl

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May 11, 2011
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Reporting bad KV is due to CPU key. Not showing DVD key on Xell or Xellous is because kv was never injected into xell/xellous.

Use Jtag Tool to build a Freeboot image.

Still need nand-x or wire up an LPT cable.

You can use jtag tool to build your freeboot image.

I built an image with just KV and config.

If you copied the CPU key from Xell could be possible the CPU key and KV are not correct. From a donor nand.
 
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H

hot_wired13

Full Member
Nov 16, 2004
45
6
Singapore
Fisticuffs said:
Ask Him again for the original nand.bin, Not the updflash.bin, You'll need it for jtag tool to edit the kv_info, Not sure if you can get the kvinfo from the updflash.bin,

To edit the dvd info, First open the nand, Then where it says cpu key, Put yours there, Then click get info, Then you'll beable to edit the dvd key and what type of drive it is you got from jf from your samcfw.bin, Then click apply and extract the kvinfo and save it

Also here's some reading material
http://www.team-xecuter.com/forums/showthread.php?t=54802
http://www.team-xecuter.com/forums/showthread.php?t=54531
Click to expand...
I've tried loading the 2 copies of nand.bin, and even updflash.bin into JTAG Tool like your screenshot - I get an error saying "Wrong CPU KEY - cannot decrypt KV".

I think what TilVl says might be right about bad KV being wrong CPU key... but I obtained this CPU key through XeLLous - so its very possible it might be donor?

What do I do now? Do i continue following TilVl's steps? Or?
 
H

hot_wired13

Full Member
Nov 16, 2004
45
6
Singapore
Hi guys, here are my assumptions from what I've read so far. Please correct my assumptions if they are wrong.

1. XeLLous ALWAYS displays the right key, since it pulls it from the motherboard.

2. In this case, if I have the RIGHT key, but I can't decrypt the KV... well, it probably means that the only solution is to use a donor KV over? Or can I just "generate" one? Or am I wrong?
 
Martin C

Martin C

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Jan 10, 2004
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make a note of the CPU key from your screen (yes, Xellous will always show the correct one). Then use 360 Flash Dump Tool 0.97 and enter the key in settings. Then try opening the NAND dumps you have. If it can't decrypt the DVD information on the right of the app, they were built using the wrong key. Contact the guy who did it and ask for your correct dump.
 
TilVl

TilVl

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May 11, 2011
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If you can't get the orig dump, or the KV that uses your CPU key.

Just get a donor.

Make sure you have the CPU key for your donor nand.
 
H

hot_wired13

Full Member
Nov 16, 2004
45
6
Singapore
Hey guys,

Okay, I found a donor Falcon bin and managed to swap the KV over to the old updflash.bin which my seller previously gave me.
(If i just flashed updflash.bin which seller gave me, I can access the dash, etc, but DVD drives dont work and I get KV_error)

I flashed updflash.bin into the console and... when I turn it on, the light is green but there is no output (tried HDMI and AV cables, both no output). I also cannot get the controllers to sync.

However, if I boot the console by using the DVD Drive button, I am able to go into Xellous and everything looks good (no more errors, DVD and CPU key shows!)

My question is... what do I need to do to get the dashboard and all working?

Edit: I tried using the original nand.bin the seller gave and swapping keyvaults and then patching with freeboot via jtag tool - worse.. Christmas Lights! Is there an easier way to do this?

Edit 2: Argh, this is so irritating. I've tried so many ways (i.e, patching different images - nand vs freeboot, etc) and tried patching key from donor nand, etc. but still no luck. Perhaps someone kind could help me make an image to flash? The drive is a Samsung ms25 (456576CF131C5E340E947E4F1006955E) and the CPU Key is: 79351CC85672A6D25C2BD1D26E59B1F0 - a banned keyvault or anything would be fine too... anything to save me from this headache! :(
 
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H

hot_wired13

Full Member
Nov 16, 2004
45
6
Singapore
TilVl said:
Wrong SMC. Make sure the SMC is configured for your wiring.
Click to expand...
I'm not sure what wiring is this, but I know for sure there's no wires above the board.

Inside JTAG Tool, I went to Drivers/Options and chose "Aud_Clamp & DVD_Tray" and tried to make freeboot with my original nand.bin + patched KV.

When flashed, I got an e79 though.

Where should I follow/what tools should I grab to try other SMC's? And how should I do it?
 
H

hot_wired13

Full Member
Nov 16, 2004
45
6
Singapore
TilVl said:
You said you had a working Falcon nand correct? Send me what you have.

[email protected] ill make you an image.
Click to expand...
Thanks for helping, TilVl! :) Much appreciated!

DVD Key: http://dl.dropbox.com/u/77055/falcon/dvd_key.txt
Fuses/CPU Key: http://dl.dropbox.com/u/77055/falcon/fuses.txt
Seller-provided NAND.bin: http://dl.dropbox.com/u/77055/falcon/nand.bin
Seller-provided Drive Firmware: http://dl.dropbox.com/u/77055/falcon/Sam_CFW.bin
Seller-provided updflash.bin (working if I flash it to NAND, but seems like corrupted KV): http://dl.dropbox.com/u/77055/falcon/updflash.bin

Here are also some pics of the wiring (seller did it, I'm not sure which wiring is it):





 
TilVl

TilVl

VIP Member
May 11, 2011
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Looks like Orginal Wiring. Try this one. Let me know if it works or not.

http://www.megaupload.com/?d=398XH132

Should change the wiring. Take off the switching Diodes and the transistor method with AUD_CLAMP / TRAY_OPEN.

Helps pull the logic to 0. Get a clean boot every time.
 
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