Jtag tutorial updated 11/10/12

[Nevbox]

The one on this thread + Reverse Jtag wires.

[Modded Matt]

im doing a falcon this morning

[Nevbox]

Fixed the errors from earlier, had to remove the resistor on the jtag wires (which stop E80) to be able to w and r.

[Modded Matt]

I have updated the original post to include the files needed for the most current dahsboard. 16179

thanks for the help Rodent

[Rodent]

I have updated the original post to include the files needed for the most current dahsboard. 16179

thanks for the help Rodent

thanks for updating and your welcome...

[Modded Matt]

correct, you have some major issues here. Did you flash the KV and config files back? I am assuming your dump did not have these errors in it.

[Rodent]

I have a taggable xenon that the solder points are in bad shape,  been seaching all over looking for a way to pic up other points . there are the points that are bad. where the resistors are and where the wires go across from them ... looking for a way to altenate these points to make the the jtag useable. thanks.

[Modded Matt]

You may be SOL.

I know where the other end of your wires come through on the underside of the mobo, but not the resistor side. I have a zenon at home I can trace out this weekend if you would like. If you find some post them here so I can update the tut, but I dont think you are going to find a picture already posted...

[Rodent]

thanks . I think it can be done just going to take time and patients to add a wire to the traces, I just want to make sure i get the right traces and make sure i dont tear them or anything.  thanks matt. i been looking havent found any pics or anything yet.

[3D0kassiah]

try this method using 2 x switching diodes from j1f1-4 to j2d2-2 and j1f1-3 to j2d2-1 the diodes are 1n4148
and add a 100ohm resistor on j2d2-4 to j2d2-7
if not get out ur multimeter and check the V j2d2-1 and j2d2-2 they should read 1.5k with no power connected

[Modded Matt]

the J1F1 points are bad..... he needs to trace them to another point on the mobo.

[3D0kassiah]

oh lol didnt know if it was confirmed that the pads were bad
any evidence of tampering before u got ahold of that console rodent?
and i dont think there is alt points for xenon boards
yeah the only thing i can think of is try to make a connection before the pads by scratching the traces

[Rodent]

yes it was tappared with and the J1f1  area in pretty bad shape and the j2d2 pads the traces are gone around some of the points so hopefully i can get time to sit down and follow the traces and get this thing jtagged... I just asked cause i been looking for 3 days now and think i looked at everything twice maybe 3 times over again.


Thanks for all your help guys. hope together we can get this working


 November 14,2012 Edit: if i have to I will totally rebuild the trace i have another xenon here that i can see the traces good, and i will try to rebuild each trace ... If you guys think that is impossible tell me know before i pull my hair out....lol

November 16, 2012 Edit: well i been up since 4am this morning now 3 1/2 hours later I checked everything twice seems like i got all good connections, hard wired the 3 bad traces everything seemed to be going good , dumped the Nand , Flashed xell and Still E-79... removed the resistors and the wires again. only thing i guess i try now instead of Jtaging the xbox i update it, dump the nand again after i Rgh it to get the key and make this a flashed console instead. looks like its the only hope to save another xbox from the junk pile.

[Rodent]

 Consoles after this date can not be Jtagged  if on 7371  due to they added a patch so it can not be jtagged

June 17th 2009

[Nevbox]

Made a tutorial last year for how to do this with a LPT PCI expansion card.

https://www.youtube.com/watch?v=lOMGtsmgtZ4