need help with nandx "no device found"

[horwood87]

I have just finished soldering the fast connectors to the xbox 360 mother bored and have a nandx going through usb. every thing is connected right and i have the drivers installed

i am using jtag tool and have selected usb and Xenon because that is the bored i have, and then click read nand
a cmd pops up and says

looking for usb interface device
no device found
can not continue
press any key to continue

some one please help. i am on msn all the time if u have any idea and no what i am doing wrong please add me and i'm willing make a small donation to forums or someone that can help. Thanks

 

[manwithoutname]

I'm assuming you connected the PSU to the xbox and mains? If you done that then possibly one of two:

1. Bad soldering joint?

2. One of those boards that we have been talking about here for months now that just won't read or write the NAND.

If you have used the QSB already you could try cutting the wires of the 2nd connector that uses the pin header and solder to the points beneath the board.

 

[rocket8080]

Can you post some pics of your soldering so we can take a look?

 

[horwood87]

Can you post some pics of your soldering so we can take a look?

hi thanks for the reply to both of you i cant uploadpics at the mo but i am going to get a camra to mow what is it u need to see i have done every thing i needed and also what should the jtag be on

im goin to get some desolder braids tomo for the solder pins as looks easyer

 

[horwood87]

hi thanks for the reply i have looked at it and it dose not look like a bad solder but hell what do i no i have taken the QSBs of and going to try the SOLDER PINS TO MO
ALSO what should my jtag be on

0

or somthing els do u have msn i could talk to u on to mo

 

[manwithoutname]

Without seeing the board we couldn't really tell. Soldering the pin headers is harder than what it seems. Reason is you have to clear the soldering points in order to put the pin headers through and it's not that easy task specially if you're not used to. If the contact points are damaged then it's pretty much a lost cause.

 

[horwood87]

well i removed all the stuff now as am going to start fresh in the morning with pin headers

and this time i am going to use flux as am buying some to mo

 

[horwood87]

ken the qsb"s of and it looks like a little bit sticky but it is not if u no what i mean
well what i am asking now is how do i clean it

and also because it said befor cant find nandx could it of been my jtag bit or not

 

[BGAMods]

i had this the other day and it was my psu was faulty, worth a check.

 

[horwood87]

what is psu is it power brick u mean

 

[BGAMods]

yes mate the power brick, if its not turned on and plugged in or its faulty then itll give this error.

 

[horwood87]

ok so i cleaned the points and i have got it to read but as it is going frew reading it had come up with

error: 250 reading block 3C0
03FF please help

 

[BGAMods]

thats a bad block. is there only 1 of them?

 

[horwood87]

Well it gets to block 3c0 then says error then starts again and stops at 03ff

 

[horwood87]

Do u have a email i will send u picof cmd box as i dont no how to upload on here

 

[BGAMods]

thats just 1 bad block. save that dump and then dump it at least 4 more times saving each of them a different name eg. nand1, nand2 etc.

then compare them and if youve got 0 mismatching blocks then youre good to go although you might need to remap that 1 bad block but i doubt it. wait for confirmation off manwithoutname cause im more into firmware and hes got a real good knowledge of all things jtag.

 

[horwood87]

Ok so how long do u think i am looking befor he can say wever to go ahead

so is there any point of resoildering all the wires again as that is what it is saying to do in a other subject like mine

 

[BGAMods]

theres no point resoldering if its dumped the nand. error 250 is a bad block which is common and may require remapping. continue with dumping the nand a few times and compare them with nand compare, if theres 0 mismatching blocks then it should be good.

 

[manwithoutname]

Have you dumped the NAND 3 or 4 times like flash said? Then compare them using nandcompare tool? Did you do the JTAG part as well?

 

[horwood87]

Have you dumped the NAND 3 or 4 times like flash said? Then compare them using nandcompare tool? Did you do the JTAG part as well?

i this going to sound badbut i am new to all this dose dump mean read?


also i have just read from it 4 times and they all come back the same so now what do i do thanks