Xenon E79

I

IWantToJtag

Junior Member
Jan 6, 2011
12
0
Hi,
I recently got my Jtaggable Xenon and nand x and am now having a bit of trouble.
I'm using the pin headers and quick solderboards for the jtag area, i also used coolshrimps Jtag tool.


This is everything ive done:
  1. Desoldered Pin header holes, soldered the Pin headers to the underside of the board
  2. Installed Nand x drivers
  3. Read nand multiple times, One bad block 2EC found at 3FF, Exploitable Cb version 1888 (every one of the 8 dumps were the same)
  4. Installed Jtag quick solderboards (not completely happy about the quality of soldering)
  5. Plugged back into computer and read nand just to be sure, same as nand before
  6. Wrote xell
  7. Took out power supply then connnected to TV
  8. Turned on using eject button, I get a black screen saying 'contact microsoft support' and one red light in 4th quarter. no xell
  9. Try all resistor settings, no help.
  10. Think about my rubbish soldering, could be the cause, tried to solder them again, the solder wouldn't flow around the pad's very well, maybe i've messed the quick solderboards up, but i thought i managed to get an ok connection. tried to boot into xell again still the same errors
  11. Connected the nand x back and wrote original nand back.
  12. Turned off jtag part. and tried to boot normally
  13. All lights go green, does the microsoft spinning thing and boots the xbox logo, and then as it gets to the dashboard part i get sectors 1 and 3 Red (overheating)
So all i wanted to clarify was that, could the soldering be done badly to cause these errors? Or has the xbox actually overheated?
If i think i've messed up my Quick solderboards, what resistor/wire should i use to do the jtag part straight to the motherboard?
i'm guessing the Nand Part is good because it read my nand. and i read that one bad block isnt too bad and i could continue without re-mapping it, right?
The bad block shouldn't have been the problem for xell because its near the end, right?
Where do you guys advise me to do from here? I really want to get this working.
Thanks in advance.
 
J

jfelding

VIP Member
Feb 9, 2010
687
0
Denmark
Yes, 10th is the cause!
You can switch to anything but OFF. Should be understandable why :p

From here it would be best to test every point and trace (on the qsb) with a multimeter.

If you cant do that, then i would go for the simple Diode/jumper method. Diagrams are everywhere ;). Easier as you can actually see and feel what has a connection and what doesn't.

- And of course; Plenty of flux!
 
Last edited:
rocket8080

rocket8080

BANNED
Jul 9, 2010
684
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uk, Oxfordshire
E79 is generally I find bad soldering when people are using the qsbs. Any chance of posting some high res pics of the jtag part of your soldering.
 
I

IWantToJtag

Junior Member
Jan 6, 2011
12
0
rocket8080 said:
E79 is generally I find bad soldering when people are using the qsbs. Any chance of posting some high res pics of the jtag part of your soldering.
Click to expand...
I don't know, i would be rather embaresed to show you them, they are pretty shocking, you might think im incredibly stupid :D. I suppose i'll try the diode/jumper method, as i think i've burnt out the solder board contact pads.
Is it 1n4148 diodes? which can be seen on this tutorial. This is the right method for the jtag part right ? [ame]http://www.youtube.com/watch?v=ytLci_y22fg&feature=related[/ame]
I don't have a multi-meter so i can't really test them, unless i go and buy one so, i'm hoping i could just go and try the method above.
Thank you to everyone
 
J

jfelding

VIP Member
Feb 9, 2010
687
0
Denmark
Yes, thats the diodes. You can buy 100 for a dollar or two with free shipping ;)
 
rocket8080

rocket8080

BANNED
Jul 9, 2010
684
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uk, Oxfordshire
You can also use BAT41 diodes, I use these myself.
 
J

jfelding

VIP Member
Feb 9, 2010
687
0
Denmark
J

jfelding

VIP Member
Feb 9, 2010
687
0
Denmark
rocket8080

rocket8080

BANNED
Jul 9, 2010
684
0
uk, Oxfordshire
I use them beacause of when jtagging falcon boards and up they are a better diode to use, they are slightly different to 1N4148. On a xenon either will do though, Its just my personnel preference
 
I

IWantToJtag

Junior Member
Jan 6, 2011
12
0
rocket8080 said:
I use them beacause of when jtagging falcon boards and up they are a better diode to use, they are slightly different to 1N4148. On a xenon either will do though, Its just my personnel preference
Click to expand...
Okay, Thanks to everyone that helped and gave advise. I hope it all runs smoothly (Fingers Crossed) :)
 
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