ENORMOUS Problem. NAND not reconized after soldering CoolRunner.

R

RiderFx3

Full Member
Jan 9, 2011
25
0
Hello guys !

I have an ENORMOUS Problem!

- I have dump my NAND with JTAG Tool (via USB SPI)
- 2 corrects DUMP, so JTAG Tool Generated my ECC
- I write ECC
- I Solder CoolRunner on my Slim 4Go
- Won't Glitch (I Heard pulses but no xell)
- After many attempts to fix the boot with cables passages, I decide to reflash my ECC.
- But Nand Pro don't detect my NAND (Nandpro could not detect a flash controller)
- 360 NAND Flasher don't detect my NAND too (the SPI is correctly installed)

I have de-solder and resolder all the cables (coolrunner + SPI) same problems, no xell, no detection in NandPro !

R3B15 is OK (33 Ohms)
Here is a photo after I have desolder the coolrunner, no hot traces: http://img192.imageshack.us/img192/3416/img2114h.jpg

Here is the pics of my coolrunner installation:
http://img18.imageshack.us/img18/3904/img2123ie.jpg
http://img28.imageshack.us/img28/2804/img2122p.jpg
http://img846.imageshack.us/img846/2995/imageffy.jpg

So i decide to erase my NAND with Infectus.
I solder infectus and run infectus programmer.
Here is the pics of my solders: http://img607.imageshack.us/img607/3718/img2124m.jpg
http://img59.imageshack.us/img59/411/img2125jh.jpg


Detection is OK : Hynix ...

I read the nand 3 times, and compare > OK
I erase the nand
When I want to write my original dump, infectus programmer detect my NAND as UNKNOWN and i CAN'T write it!!!
The NAND isn't reconized yet by ma SPI.

I have try to connect my infectus with external 5v (xbox bloc disconnected) but the NAND isn't reconized yet.

Help me please i'm lost !
 
P

paul.86

VIP Member
Sep 4, 2011
242
0
ROTHERHAM
Short pins 41-44 and plug power in and unshort and check again

Or try erase nand in nandpro as soon as you connect power brick

Sent from my HTC Vision using Tapatalk
 
Last edited:
R

RiderFx3

Full Member
Jan 9, 2011
25
0
All is normal except the point 6:

J2C1 :
1 = 1.37v
2 = 3.35v
3 = 1.37v
4 = 40.7 Ohms

J2C3 :
5 = 3.09v
6 = 0.092 kOhms

R3B15 = 32.3 Ohms
 
Last edited:
Martin C

Martin C

VIP Member
Jan 10, 2004
35,981
0
Scotland, UK
www.team-xecuter.com
The same way you trace anything. The via goes to the top of the board (if you're lucky) and you'll need to see where it goes from there.
 
BraveH43

BraveH43

VIP Member
Sep 13, 2008
1,514
0
Somewhere in the 'verse
looking at the pics you provided looks like it goes back through to other side of board , then back through again further down ending up somewhere just left of the hole in mobo in the bottom right hand corner of your last picture (kinda hard to trace without having board in front of me)
 
R

RiderFx3

Full Member
Jan 9, 2011
25
0
It's very difficult to retrace the point on the other side of the mobbo...
Have you got a motherboard at your home to check this for me tonight ?
Thanks a lot for this help guys I'm damned with this xbox !
 
R

RiderFx3

Full Member
Jan 9, 2011
25
0
I have unsolder all the wires, and clean up my motherboard with white spirit.
Now the results are better:

J2C1 :
1 = 1.2v
2 = 3.3v
3 = 1.3v
4 = 40.7 Ohms

J2C3 :
5 = 3.0v
6 = 7.3 kOhms

The point 6 say 7.3 kOhms instead of 5.6kOmhs

But NAND still undetected...
 
Last edited:
You must log in or register to reply here.