NandPro: LPT and USB nand flash programmer with only 7 wires

[hawkeye06]

OMG!!!!!!! I got it!!!!!!!!!!!!!!!!!! After like 10 hours of troubleshooting!!!!!!!!!!!!!!!!!!!!!!!!!! YAY!!! Its dumping as I write this.... Im so excited.  I removed the resistors and it still didn't work.  I think my whole problem this time is that I was going off of the lpt diagram and where the pins were placed on the lpt port diagram. This time I used the pin numbers written on the lpt cable itself. Then it worked!!!

[toyopsp]

I've flashed a bad nand dump on my box, it wont turn on anymore and nandpro wont read it after the flash, all the wires and the diode is still intact and im pretty sure that the mobo is not fried, i just need to short the nand chip but how? should I follow the 3.3v shorting of the infectus bad flash method, but i dont have an infectus chip.. or should i just short the two middle pins on the right side of the nand chip (assuming right side, close to the dvd power connector), any help please? thanks

[sandungas]

I've flashed a bad nand dump on my box, it wont turn on anymore and nandpro wont read it after the flash, all the wires and the diode is still intact and im pretty sure that the mobo is not fried, i just need to short the nand chip but how? should I follow the 3.3v shorting of the infectus bad flash method, but i dont have an infectus chip.. or should i just short the two middle pins on the right side of the nand chip (assuming right side, close to the dvd power connector), any help please? thanks

Theres no need to do this... you have some wiring problem or the motherboard damaged (or your pc or windows gets crazy)

Nandpro can read and write the nand... even if the nand is empty

[JoelB]

Well I tried halving the length of the lead to 80cm and now I get FlashConfig:00012000 instead of FlashConfig:01198010

I've checked the cable but something's obviously not right. Any ideas what could be causing the wrong FlashConfig?

80cm is about the shortest that I can use and allow me to get from the back of the PC to the Xbox in front, but if that's still too long I'll have to rearrange my PC so that I can put the xbox on top or something.

Try removing the resistor on pin 2. I had these same results and config over and over. Till i removed the resistor then got a good config. I noticed the voltage was low on pin two so putting a resistor o.n it will lower it even more. Hope it works for you

[doveman]

The strange thing is I was getting FlashConfig:01198010 when the cable was 170cm!

I'll certainly try checking the voltage on pin 2 though. Thanks for the tip.

[doveman]

I haven't managed to check my LPT's voltage yet (it's a bit tricky for me to do without running the risk of shorting something) but I cleaned up the cable, as I'd previously left the unused, heat-shrinked, wires 170cm and just shortened the used ones. Cutting the unused ones down has got me back to FlashConfig:01198010.

I decided to try the 'chunk' method outlined here: http://www.xboxhacker.net/index.php?topic=12585.0

After doing two reads of each chunk, comparing them with fc shows them all to match except chunks 2, 4, 11, 13, 15 and 16. I tried re-dumping 2, 4 and 11 but they still don't match.

Can anyone help me understand why this is happening? I'd be surprised if it's the length of the cable, seeing as it's only affecting 6 out of 16 chunks but I'll shorten it again if people really think that's the problem.

[doveman]

I made some progress by changing the LPT mode to EPP+ECP, the EPP mode from 1.9 to 1.7 and the address from 378 to 278.

Strange thing is then Nandpro finds both 378 and 278 but still uses 378, despite the BIOS setting.

By re-dumping the first copy of each of the non-matching blocks I got them all matching except for 15. After several failed tries to get 15 matching (even after changing to just ECP mode), I installed a text printer driver and after that it turned out OK. Might have been coincidence or not.

I notice that under the LPT settings in Device Manager, there's a setting that defaults to "Never use an interrupt", which can also be set to "Try not to use an interrupt" or "Use any interrupt assigned to the port". Has anyone experimented with this setting and found any benefit from changing it?

Anyway, I've got two matching copies of the NAND now, which both show no bad pages and 1463 empty pages, so I seem to have got there in the end. I'll try doing a normal (non-chunked) dump now to check whether I've finally found the settings that work on my PC.

EDIT: Yep, a dump in ECP mode only showed 1 bad page, compared to the 15-29 I was getting before and switching to EPP mode resulted in one with 0 bad pages, so it seemed like the text printer driver was what I needed.

[toyopsp]

I've flashed a bad nand dump on my box, it wont turn on anymore and nandpro wont read it after the flash, all the wires and the diode is still intact and im pretty sure that the mobo is not fried, i just need to short the nand chip but how? should I follow the 3.3v shorting of the infectus bad flash method, but i dont have an infectus chip.. or should i just short the two middle pins on the right side of the nand chip (assuming right side, close to the dvd power connector), any help please? thanks

Theres no need to do this... you have some wiring problem or the motherboard damaged (or your pc or windows gets crazy)

Nandpro can read and write the nand... even if the nand is empty

that is the problem here, the NAND is NOT empty.. I've flashed it with a xenon 8955 dump.. I didnt notice that the CB is 1923.. it's a donor 8955 dump from a friend but it was from a XENON board.. So it might be SMC related that's why no flash controller detected when using nandpro... and the box wont boot.

[bzip]

USB NANDPRO 2.0    PASS
USB NANDPROB 2.0B ERROR

This is the BUG program do

[rafaelbf]

Tips for LPT cable:
-Max 1m length
-Use a shielded cable (like the picture, 8x26 AWG).
-Connect (solder) the cable shield in external DB25M metal case. Leave another end (xbox) unconnected.
-"Pre-solder" uncapped wires before soldering in DB25M or xbox.
-1N4148 and germanium diodes works. 1N5817 schottky not working for me.
-Leave diode in xbox side. The resistors can stay inside the DB25M case.

[ILIN]

rafaelbf, nice and shiny cable. What is red thing? Some kind of non-conductive glue?

[rafaelbf]

tks 
this is a "liquid insulating tape" or "liquid tape".

rafaelbf, nice and shiny cable. What is red thing? Some kind of non-conductive glue?

[dak]

use external (from pc; usb, molex, etc.) power to provide +5 and gnd to the chip (dont connect the 360 to its psu while you have the wires connected); http://i12.photobucket.com/albums/a246/Grim187/tsopbfr.jpg

thanks, no more carrying the videocabel and psu from living room to pc 

[vintage_guitar]

I'm unable to get NandPro 2.0b to work at all in Windows 7 x64. The only way I have been able to get it to work was through VMWare XP install with direct access to the LPT port. However, it takes 6 hours to dump a 16mb nand which is ridiculous. I've tried the "modified" drivers listed on this site for x64 but it simply doesn't work.
EDIT: I fixed it.
1. Found this link http://forums.xbox-scene.com/index.php?showtopic=698049
2. Which told me to go download the bin files from http://www.highrez.co.uk/Downloads/InpOut32/default.htm.
3. Extract the contents of the win32 directory in the compressed file to the nandpro directory.
4. Rename InpOut32.dll to DLPortIO.dll
5. Done.. Worked instantly at full speed in windows 7 x64

[ILIN]

I'm keep getting error 100 and wrong flashconfig. I've tried with resistors, without them, with diode and without, resoldered everything, still no go.
http://pic.ipicture.ru/uploads/091204/TtvkgmF3Jx.jpg

[spider86]

without realizing at 1st, I soldered the wires backwards as if the picture was showing the pin side of the plug.  Is my nand fried?  I redid everything correctly and nandpro will not detect the nand.  I tried everything, w/ and w/o transitors, w and w/o diode.  I was able to read a different xbox without any problems, so I know its not the computer.  I tested J1D1 voltage and seems to be fine.  The xbox boots to the dashboard.  Is there any way to know for sure if I fried something?  Maybe some additional traces I can test?  also, the pc lpt is 5v.

[zeegler]

Can someone tell me where theres alternate solder points for the lpt maybe underneath. I had it working but after taking the cord off and soldering it back on, nandpro cant read flash. Ive tried everything. I was thinking it was the solder points, and I could try to to find new ones. Is there anyway I could solder them underneath, like where the cygnos fits, and if so where would each wire go?

[ak4d7]

i have a problem i took off a resistor on the bottom of the board named r1r1 coming from the trace of J1D2.4 and now i can't detect the flash controller, is there an easy wire fix for this.

[n00bpwner360]

Just so you know the solder points for the LPT hookups go all the way through the motherboard IIRC so you can solder to their respective points on the bottom of the motherboard.

[Blackaddr]

Can someone tell me where theres alternate solder points for the lpt maybe underneath. I had it working but after taking the cord off and soldering it back on, nandpro cant read flash. Ive tried everything. I was thinking it was the solder points, and I could try to to find new ones. Is there anyway I could solder them underneath, like where the cygnos fits, and if so where would each wire go?

As mentioned above the vias are throughhole (not blind).  Before you resolder, use a multimeter to check the connectivity between your DB25 pins and the bottom of the board.  If you have a good connection, it's not your soldering on top.