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[btums]

Hi, I recently decided to try jtagging my 360 mobo (its a xenon) in order to retrieve the dvd key encrypted in the NAND. I set up all the jtag and lpt connections correctly (or so it seems), but when I try to read the NAND in Nandpro20b with the command "nandpro.exe lpt: -r16 nand1.bin", every block the program tries to read comes back with an error of some sort. Mainly "Error 0" but with a bunch of other different 1-4 character errors thrown in their as well. The errors never show up in the same order or for the same blocks, either, as I have tried restarting the program several times, all resulting in a different sequence of continous error messages. Here is a portion of one of the readouts I got:

Testing LPT device address:0378
FlashConfig:00012000
Using LPT device at address:0378
Starting Block:0x000000
Ending   Block:0x0003FF
Reading
Error:1F00 reading block 0
Error: 3FE reading block 1
Error:1798 reading block 2
Error:17FC reading block 3
Error: 23E reading block 4
Error: 390 reading block 5
Error: 1F0 reading block 6
Error: DF8 reading block 7
Error:   0 reading block 8
Error:1A1A reading block 9
Error:161E reading block A
Error:101C reading block B
Error:   0 reading block C
Error:   0 reading block D
Error:   0 reading block E
Error:   0 reading block F
Error:   0 reading block 10
Error:   0 reading block 11
Error:   0 reading block 12
Error:   0 reading block 13
Error:   0 reading block 14

I've read on numerous forums (including this one) that a Flashconfig of "00012000" - which is what mine is, will result in these sort of errors, but I have not seen a definitive solution to this problem. I did go into the BIOS and change the lpt port from "bi-directional" to "normal" mode, but I still have the same problem. As far as additional information you might need to be able to better diagnose my problem, I'm running xp 32-bit on a toshiba satellite P25-S609 (not my main rig, just an older laptop I have that happens to have an lpt port), like I said earlier, my 360 motherboard is a xenon, and I have been primarily following this tutorial: http://www.se7ensins.com/forums/modding-tu...-nand-xell.html  I am using (as the tutorial suggests: 3 1N914-1N4148 switching diodes and 5 100-ohm resistors), all in the appropriate locations.

As of now I'm fairly stumped, so any help you could provide would be greatly appreciated!

[Haruno]

When I had this error i found out that i read my db25's pin positions incorrectly so none of my wires were soldered to the right place.
Other than that, something is clearly not making an actual connection....

[btums]

Yeah its funny you say that...because when I originally wired up my lpt cable I thout I had it backwards, so I switched it up. Maybe I was right the first time...

[Haruno]

Your db25 SHOULD have numbers on the black side of the adapter.

[btums]

Ok, I double checked all my lpt pins to be sure, even compared them to several different diagrams and pictures....and they're right. Think I might have burned up a diode? (I did solder and resolder the connections several times :/) If not, any other ideas? Thanks.

[Haruno]

If it was a diode issue it wouldnt be 00012000 unless it's causing a short somehow.

Hopefully someone knows more about this but from my experience, 00012000 means there just isnt a connection happening.

Try another computer? Just remember it has to be an lpt port on the motherboard, pci cards will not work.

[Downcastnut]

QUOTE(Haruno @ Jan 27 2010, 11:06 PM)

If it was a diode issue it wouldnt be 00012000 unless it's causing a short somehow.

Hopefully someone knows more about this but from my experience, 00012000 means there just isnt a connection happening.

Try another computer? Just remember it has to be an lpt port on the motherboard, pci cards will not work.

I got error 00012000 because I forgot a diode on pin 11.....