alright guy's for you people who are looking to make a jtag here's how its done

what you need,
1.100ohm resistors (five at the least)
three. switching diodes (preferably 1N4148)
0.8mm diameter solder
(if unable to find 1mm diameter is suggested)
KYNAR wire (30 guage wire)
(approx 1.5mm)
LPT connector

2. alright now i forgot to mention you'll need a 25watt soldering iron

now how to remove your xbox well there are tutorials for that
you'll need 8 and 10 torque scredrivers (radioshack has these)
now when your xbox is apart and your mother board is in fron of you then its time to get started.
[ Register or Signin to view external links. ] the image represented shows your JTAG points make sure your ready to solder and when soldering put the wires in the solder points for a secure connection.

3.when done get ready to put the wires into your lpt port and connect your lpt connecter with the port on your xbox360 in the picture shown. [ Register or Signin to view external links. ]

now when complete you should be ready to dump and flash your nand

4. You will need the following to dump your Xbox 360 NAND.
- Computer with a LPT port(Printer port)
- LPT cable with a DB25 Male end.
- 5 100-Ohm resistors. I used 100-Ohm 1/2 Watt resistors
- 1 Switching Diode. I used 1N914 - 1N4148
- Solder Iron
- Some patience
- NandPro20b to dump the NAND
- Total Commander to make sure your dumps are identical

**If using a 64bit OS - Download this and Extract inpout32.dll from Win32 folder to nandpro folder. Rename inpout32.dll to DLPortIO.dll

[ Register or Signin to view external links. ] Now dumping your NAND is crucial to this. You want to have a good clean NAND image that can be flashed back to the console if need be. So lets get started.

1. We need to set up the solder connections onto the motherboard. I used a printer cable and cut it midway and spliced it open. Then used a multimeter to figure out which cable goes to which pin. I then wrote the color/pin combination on a piece of paper.

Now attaching the cable to the motherboard is easy as long as you know how to read the diagram which is pretty straight forward. Just follow the lines. This diagram also shows the JTAG connections. Just ignore that they are there since you already have the diagrams up top. *Diode MUST be soldered directly the the board, will not work in plug housing if you make your own cable!*

NOTE: This will make it a lot easier for you that do not solder the resistors to the board and have made your own lpt cable. This will solve most of your "Could not detect flash controller" errors.

1. Cut spare resistor stems off.
2. Cut those stems in half.
3. Wrap the end of your wire from the lpt cable around the stem and solder the stem and wire togehter.
4. Now Solder that stem INSIDE the hole on the motherboard. Not on top but actually letting it sink inside the point.

Pin number 18 coming from the LPT cable is shown as ground. This wire should be soldered to either the ground next to where Pin 11 solders to or the ground under where Pin 16 solders to. This will ground it and prevent the 360 from shorting and turning off.

Ok so now that you have the LPT cable soldered to the motherboard and have your cable connected to your PC. It is time to start dumping the NAND. In order to dump the NAND you will need Nandpro20b which can be downloaded on Xbins.
Directory for Nandpro20b is
/XBOX 360/development/kernel/nand tools/NandPro/Getting files together:
1. Make a new folder and name it Nandpro20b then extract the content of the rar file into this folder.
2. Place the Nandpro20b folder in the root directory of your hard drive.
3. In the Nandpro20b folder there is a prgram called "port95nt.exe" run that to install the drivers. Then you are ready.
NandPro should work with all 32bit OS's. It is said it works fine with Vista and 7 but may need admin rights and XP Compatibility on.
Anyway lets get to reading your NAND.

Plug the power cable into the back of the 360 and into the wall so it has its power source. But do not turn on the 360 as it is not required. All you need to do is plug in the power cable and continue.

Dumping the NAND:
1. Click Start
2. Select run
3. Type CMD
4. Now in the command window you will need to type the command to read.
For Xenon, Zephyr, Flacon, Opus and 16mb Jasper's(No internal memory)

C:\Nandpro20b\nandpro.exe lpt: -r16 nand1.binFor Jasper's with 256mb Internal memory.

C:\Nandpro20b\nandpro.exe lpt: -r256 nand1.binFor Jasper's with 512mb Internal memory.

C:\Nandpro20b\nandpro.exe lpt: -r512 nand1.bin5. Click enter and it should start. If it says testing 4 times and fails you need to check your soldering.
6. If done right it will start to read the NAND. It should read to block 3FF.
7. Repeat step 4. You want to have at least 2 dump to compare to each other and make sure they are identical.

*Note that it is possible that your NAND has bad blocks in it. Error(25x) and you keep getting this each time you dump the NAND don't worry. It is safe to continue because that is just how your NAND image is.

How to check if your NAND dumps are identical.

Download Total commander here.

[ Register or Signin to view external links. ] . Open Total Commander.
2. Click File
3. Compare by Content
4. A new window will open. Open on nand dump for file one and open the second dump for file 2.
5. Then click Compare.
6. If it says file are identical you are set to continue. If it does not say that. I suggest you go back and dump 1 or 2 more times.

If your two dumps are identical. Congratulations. You have successfully dumped your Xbox 360 NAND. Now you can continue.


Checking the CB Version



This is a very important step for 360's with the 7371 kernel. Some of these 360's have been patched already to stop the JTAG hack. This is the way to make 100% sure whether or not your 360 is still vulnerable.

/XBOX 360/development/kernel/downgrading/

Exploitable CB versions:
1888, 1902, 1903, 1920,1921: exploitable xenon
4558: exploitable Zephyr
5761, 5766, 5770: exploitable falcon
6712, 6723: exploitable jasper

Non-Exploitable CB Versions (CD = 8453 for all of them)
Xenon: 1922, 1923, 1940
Zephyr: 4571, 4572, 4578, 4579
Falcon/Opus: 5771
Jasper: 6750

NAND wont open in Degraded? Here is how to fix that.
1) Make a copy of your NAND backup
2) Open that copy in a hex editor
3) At offset 0x0012 you will see 2004 - 2007 Microsoft Corporation
4) Change that to 2004 - 2005 Microsoft Corporation
5) Now you image will open in Degraded.

For Big Block consoles. Degraded will not open your image.


How to Install Xell



Xell is used to grab your CPU Key for your console. Which is a good thing to have in case you need to open your KV. Install Xell is easy and takes little to now time. This is not needed to install XBR. XBR already has Xell integrated with it. This is for the people that just need their CPU key to decrypt their KV to get their DVD key. XBR 3 will start Xell if you start the 360 with the eject button.

First you will need to download it from Xbins. Again here is the directory.

/XBOX 360/development/free60/images/Download the image for your motherboard revision. Extract and place it in the nandpro folder. Make it easy on yourself and rename the Xell file to Xell

With your LPT cable and everything still set up. You will be using nandpro again. So here we go again.

1. Click start
2. Click run
3. Type CMD
4. Type the command.

C:Nandpro20bnandpro.exe lpt: -w16 Xell.bin Don't worry about the file size. It is meant to only write to the beginning of your NAND flash.
5. Click enter and it should starting writing.
6. Once it is done writing. Unplug the lpt cable from the PC and turn on the 360. It should boot into a blue screen. If it does then you did it right.

For Xenon, Zephyr, Flacon, Opus and 16mb Jasper's(No internal memory)

C:Nandpro20bnandpro.exe lpt: -w16 nand1.bin

congrats you have now JTAGGED your xbox360 and are ready to be on your way to endless modding or whatever you want its great and if there are any problems please send me a pm or you can send me a message on XBL my GT: Pco Infinity.