Nand Reading Help

[cyberlenin98]

So the first 2 times I dumped my nand (on 2 different Xboxs) it worked fine. Now when I try, I get the "Can not find USB interface device" message."

I may or may not have updated coolrunner while it was connected to the Xbox.

What I'm thinking the problem is, is with the points J2D1.1 and J2D1.3. I saw the post here http://www.team-xecuter.com/forums/showthread.php?t=77908 and on all 4 of the 360's I have, I can't get those 2 points to have readings above .1 volts. I've found that the 2 points seem to be somehow connected. Sometimes if 1 reads .4v then so will the other, however, I don't have continuity between them. All other points have the exact same reading as from the post. I've also included the pics of my soldering. (Yellow is soldered to the av port for grounding.)

 

[Oggy]

Thats a communication of pc -> nandx error, not soldering.

 

[Martin C]

Are you measuring the voltages with nothing else connected aside from the PSU?

 

[cyberlenin98]

Yup. Just the PSU. And I've tried multiple PSUs, just to be safe.

Also, do you think I could have fried my Nandx by updating coolrunner while connected to Xbox? And if so, how will I be able to tell? It still says it's connected on my computer and it will still update Coolrunner (not connected to Xbox).

And thanks in advance for any responses.

 

[oO Elite Oo]

Ive had issue with nand reading as well and the problem was the yellow wire. You can also try reading from under the motherboard for better connection..

 

[Martin C]

The chances of all 4 consoles have blown SPI comms at the southbridge is very unlikely.

So what happened between the last time it worked and now?

 

[cyberlenin98]

Isn't the yellow wire just for ground? Has the debate been settled as to whether it needs to be in J2D1.5 ONLY or if any ground point is ok?

---------- Post added at 04:53 ---------- Previous post was at 04:51 ----------

And Martin, what I'm assuming happened, in the worst case scenario, is I may have programmed my Coolrunner while it was connected to the Xbox. Does that spell instant death for the Nandx? Also, how can I tell if that's the reason it's broken.

 

[Oggy]

ground is ground.

 

[oO Elite Oo]

Isn't the yellow wire just for ground? Has the debate been settled as to whether it needs to be in J2D1.5 ONLY or if any ground point is ok?

---------- Post added at 04:53 ---------- Previous post was at 04:51 ----------

And Martin, what I'm assuming happened, in the worst case scenario, is I may have programmed my Coolrunner while it was connected to the Xbox. Does that spell instant death for the Nandx? Also, how can I tell if that's the reason it's broken.

Yes yellow is GND, ive had many disconnection with yellow wire but i suggest you place the yellow wire to any GND point doesnt matter.


Edit: If the connection still says cant find USB interface then check your power block as well, at times it can be red instead of orange.

 

[Oggy]

I use the AV socket same as I do for the CR.

Not one issue.

 

[cyberlenin98]

I guess the ultimate question is this: how can I know if I've blown up my Nand-X? I.e will it not show on my computer, will it not be able to update Coolrunner?

And if I have done this dastardly deed, is there anyway to perhaps "reset" it, by maybe shorting it, replacing a resistor, etc?

 

[Krafter]

You "should" be able to see the nand-x in device manager unless it's completely dead. You can also try disconnecting it from the motherboard and running nandpro and see if the error changes. If it finds the nand-x then it will say something like "no flash controller found".

 

[cyberlenin98]

No matter what, I get "looking for USB interface device." It does recognize, though, that I have v3 because when I try to run it on 2.0b, it tells me that I've got the wrong arm version.

 

[TilVl]

Try pressing the small reset button?

Sent from my SGH-T839 using Tapatalk

 

[cyberlenin98]

Tried it all. I've seen on the forums numerous people who are in my situation and still I haven't seen a solution-- people who dump their Nand once or twice, come back and then aren't able to do it again.

 

[tonyjandc]

daft question and slap me silly here I am tired but have you (a) tried another usb cable (b) checked in system properties for nandx (try another usb port)

---------- Post added at 14:20 ---------- Previous post was at 14:19 ----------

(c) what lights if any are you getting on your nand x when just plugged into pc/ laptop

---------- Post added at 14:25 ---------- Previous post was at 14:20 ----------

forget my post just re read as stated before am tired. Just to let you know I had a sim prob program coolrunner but no luck in reading nand if you have reused the nand wire before strip all old wire off and re-tin new strands and start again could be cold solder joints from old solder on wire.I did this and bang read lovely no errors in dumps either

 

[cyberlenin98]

Tried another USB cable. Checked to make sure it was their in device manager. I also know it works and is v3 because when I try to run it on 2.0b it tells me wrong arm version.

I really think my problem lies in my soldering and my inability to get the ~1v on j2d1.1 and j2d1.3. I just find it strange because on all other points, I achieve either the correct voltage or resistance on the first try. I've exposed the traces on the alt points and still, I get the same voltage.

 

[cyberlenin98]

Also, I read somewhere that you should have 2 Nand-Xs. 1 for dumping Nand and the other for programming Coolrunner. Is there any truth in that? Apparently some peoples Nand-X's quit working when they do both.

 

[Martin C]

Untrue - I use my nand-x for both (and have done so dozens of times).

If you're not getting ~1v on J1D2.1 or 3 then SPI communication with the Southbridge is the fault.

Get a working board with a good reading on these points and try from there.

 

[afsilver]

Also, I read somewhere that you should have 2 Nand-Xs. 1 for dumping Nand and the other for programming Coolrunner. Is there any truth in that? Apparently some peoples Nand-X's quit working when they do both.

Very untrue! That would defeat the whole purpose of being able too update your nand-x too v3.
Ive never used anything other then my one nand-x for CR and nand programing!