FALCON Xbox isn't booting past 1E after installing CR4, also doesn't work on stock NAND

[stairmast0r]

Console Type: Falcon
NAND size: 16
Dashboard version:17150
CB version: 5774
Screenshot of NAND details from J-Runner:
http://imgur.com/a/Kb69Y#15
J-Runner log: ?
POST output from J-Runner (either POST_OUT monitor or RATER output):
CR4 Selected
Version: 10
Power Up
Waiting for POST to change
Post 10 - ......
Post 90
Post B0
Post F0
Post F8
Post 78
Post 70
Post 60
Post 20 - ...
Post 04 - BOOT SEQUENCE STARTING
Post 06 - ....
Post 01 - .
Post 01 - .
Post 03 - ...
Post 04 - BOOT SEQUENCE STARTING
Post 05 - ...
Post 06 - ....
Post 01 - .
Post 03 - ...
Post 04 - BOOT SEQUENCE STARTING
Post 05 - ...
Post 06 - ....
Post 07 - .....
Post 08 - ......
Post 09 - .......
Post 0A - ........
Post 0B - .........
Post 0C - ..........
Post 0D - GLITCH CHECK COMMENCE
Post 0E - CB_B ENTRY REACHED
Post 0F - GLITCH SUCCESSFUL
Post 10 - ......
Post 11 - .......
Post 12 - ........
Post 13 - .........
Post 15 - CONTINUING
Post 16 - .
Post 17 - ..
Post 18 - ...
Post 19 - ....
Post 1A - .....
Post 1C - .......
Post 1E - .
at this point it loops back to 01 and repeats infinitely

updflash.bin log (if applicable):
Image of R-JTAG board: below
Images of close-up soldering to motherboard:
http://imgur.com/a/Kb69Y

Description of problem:
The console won't boot past 1E with the CR4 installed. At one point, while moving the postbit jumper (Literally while moving it, at some point while I wasn't looking at the monitor), it did actually reach 2E and stop there, but I haven't been able recreate it since. I've tried all the DIPs one at a time, with all three postbit positions, but the only one that seems to yield any results is 3+7 @ 0 ohms — other settings don't get past POST 10. Most or all of the solder joints have been touched up and appear to be making decent connections. The console also won't go past POST 10 without the JTAG QSB resistor set to 470 ohms.
When flashed back to the stock NAND (nanddump1.bin -> Write NAND) and desoldering the +5V line, I get a 0022 RRoD and no video.

Was the console working before you started: Yes

EDIT: I decided to just scrap this board and get a Jasper, but this thread might as well stay up for anyone else having similar issues.

 

[john mathews]

pictures of install and jr log would be great

 

[keil423]

Thing is if you wrote the retail NAND back to the console and removed power from the cool runner and you got error 0022 Which usually means a dead CPU (when rghing) or that damage was done to the motherboard somewhere. Check for any where you may have slipped and scratched the board damaging traces, also check for any possibly torn off components, last look for any potential solder bridges or solder splash on the motherboard. Aside from that it's either a problem with the Hana/gpu or CPU. I'm guessing CPU in your case.

 

[stairmast0r]

So it should be safe to assume that it's not an issue with the CR4?
I accidentally tore off R4B24 and some of its accompanying traces, which entirely prevented the console from powering on, but I was able to replace it with a 33 ohm resistor from the underside, right at C4N27, and wired around to the NANDX/CR QSB's left-side resistor. After that, it did power on again but gave the RRoD.

 

[keil423]

Post pics of the damaged are and repairs. Maybe there is hope for the box yet.

 

[stairmast0r]

I'll do that in a couple of hours

EDIT: Updated the original post

The resistor connects to the underside of the via from right before R4B24, goes through the hole in the board, then attaches to the JRP board's resistor as well as the trace on the motherboard where it was broken.

EDIT again: I did slip with an Xacto on the underside of the board, and I just found the spot it hit. It made a scratch on the trace to C2P2, but it doesn't look like it did any significant damage.