Jasper 512Mb with Demon SB + DIY conversion wont work

[marcus.miranda]

Hello all,

I have a Jasper 512Mb in 16747 I'm installing the Demon SB Phat version and I can't make it to work.

First I've installed the RGH and using rev C and XSVF D I get to boot within 3 cicles always. After installing the RGH and making sure it's working I took my Demon and plugged into my PC to test it out (demon X360/PC switch was configured to PC). First I've updated it to FW 1.4 then I did a Demon NAND read to look for bad blocks and all was fine. I tested switching between Demon and X360 using the Demon Toolbox and it was fine. Also using the Demon switch button.

After testing everything with the demon board outside the Xbox 360 and making sure all was good I proceeded to install it to the motherboard.

I switched the demon X360/PC to X360, soldered all of the 14 quick solder pins to the motherboard and, with a multimeter, tested no one was shorting with the next one (both sides). Soldered the other 7 wires (1, 2, 3, 4, 5, 6 X7 and Sync) - pictures bellow. Plugged the flat cables accordingly (thin one to the small board going to the rev C and the other to the demon side board). Using NAND-X I reflashed the rev C using the XSVF D (with Demon installed option) and soldered the small board EN pin to EN pin in rev C.
I went to J-Runner app and created a 16mb 16747 RGH2 freeboot NAND using the 66Mb retail NAND. Using the toolbox I flashed the Demon with the 16mb NAND I created and reflashed the console using the 66Mb retail NAND.

Now the weird part. If I plug the console to the power supply (blue light lits) and when I press the power button nothing happens. The console is like dead. If I switch to Xbox NAND (blue light is out) the console turn on but never works.

I'm not very used to do the Demon install in Phat consoles just Slims so I could have forgotten something. Do you guys have any clues?

PS: I'm using 10k ohms resistors as the conversion kit.

Thanks!

Pics:
https://www.dropbox.com/s/n7und07gzmdk27t/2014-05-04 17.59.35.jpg
https://www.dropbox.com/s/76afxtagxk3rxee/2014-05-04 18.00.12.jpg
https://www.dropbox.com/s/ut1w14ty8i9in2f/2014-05-04 18.00.40.jpg
https://www.dropbox.com/s/ak07x5mby9dzn75/2014-05-04 18.00.51.jpg
https://www.dropbox.com/s/44py90f7q4jqmi3/2014-05-04 18.01.00.jpg

 

[scott1503]

You could try a genuine coolrunner

 

[marcus.miranda]

You could try a genuine coolrunner

Thx for you reply.
The issue isn't with the coolrunner. This is a personal machine I'm using for tests with Demon in Phat BB using the Demon SB version and I don't want to spend a coolrunner on it as I'll take everything out after my tests.

The RGH part is working like a charm, as I said. 3 cycles always.

What I'm really interested in knowing is if I could have forgotten something in the Demon. Now if you tell me that the coolrunner could be really the culprit, I'll swap it.

Thx one more time.

EDIT:
Well, it could be really the coolrunner. If i try flashing it using the demon and J-Runner app I get this error:
sending xsvf to demon...
Failed - TDO MISMATCH

Any clues?

 

[morinzo]

When you programed the coolrunner did you check the box that says Demon Installed?

 

[gavin_darkglide]

when u created your freeboot nand did you create a 16MB jasper nand image, before flashing the demon? This is most likely the problem.

 

[marcus.miranda]

When you programed the coolrunner did you check the box that says Demon Installed?

Yup!
I did RGH first without the Demon Installed checkbox and the RGH worked perfectly. Later I removed the the demon board and all of its related wiring and flashed the console NAND back to the 512Mb freeboot RGH2 NAND and the console works perfectly. 3 cycles, max, always.
When I installed the Demon and did anything I mentioned above, I also flashed the coolrunner with the Demon Installed checkbox checked using the NAND-X because when I tried the Demon micro USB I got that error message.

when u created your freeboot nand did you create a 16MB jasper nand image, before flashing the demon? This is most likely the problem.

Yup! I created a 16mb based on my 66Mb NAND dump and used this one. That I'm positive sure.

BTW, thx for all of your feedbacks!

EDIT:
It was the DIY conversion I did. I only looked one post to find out information about it and the thread mentioned the resistors were 10k. Turns out that it was 2.2k. I discovered after reading a catch from BLAK3Y.

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