Just an update on my situation....
To those who have attempted to do this update and were left with no video output - just a black screen - box turns on but never boots, just single green LED in the middle lights up.
I followed this guide by InsaneNutter:
http://digiex.net/gu...uild-0-1-a.htmlAt the time of my posting, THIS GUIDE IS INCORRECT!
I followed this to the T and my resulting flash file bricked my console.
Since I couldn't even get into Xell, I had no choice but to reflash via LPT.
Luckily I still had everything soldered up and had made a flashdump of my working freeboot flash. I was able to reflash that copy back via lpt. Xbox booted right up after that.
Still determined, I followed qualar's guide above:
http://forums.xbox-s...&...t&p=4752448The steps
are different from the other guide. I'm happy to report THIS GUIDE WORKS.
I'm not sure where things went wrong, but there were more files to be extracted/injected in qualar's guide which I believe to be the main culprit. Another thing I noted, qualar's guide called for a previous freeboot dump to build off of versus InsaneNutter's guide was building of the original nanddump.
Regardless, I'm up and running now after the mini heart-attack.
The guide is correct to the best of my knowledge, that is exactly what I did to update my Jtag and its sat here working perfectly.
You used a previous FreeBoot dump to get your console working so I guess your SMC was modified in some way in the past? Maybe you did the aud-clamp wiring for your Jtag? If your Jtag required modifications to the SMC to boot that would explain why using the original doesn't work and the old FreeBoot nand does.
Fbbuild states the additional files you used should not be required so I would guess its down to the SMC, either way i'm glad your 360 is working.