The Xbox 360 is full of homebrew tools, here is one created byBadBloke fromforums.xbox-scene.com that helps you with the Jtaging process

Download     http://dwl.xbox-scene.com/xbox360pc/nandtools/AutoHacker_V2.1.rar Download

AutoHacker is an app I wrote which helps automate the proccess of SMC/JTAG Hack (on nand-related stuff only, of course).

FEATURES:

- Motherboard Autodetection
- CB version / exploitability Autodetection
- Reads NAND two times (or part of it if we are using a BB Jasper)
- Compares the two backups, if they are identical, it saves them in a folder with a name of our choice.
- Extracts KV and ConfigBlock from the NAND Backup.
- Patches previously extracted KV and ConfigBlock in to the correct version of XBReboot (which is also autodetected).
- Writes final image to NAND memory of our console.
- Can also erase NAND (or part of it, if we are using a BB Jasper)
- Can also write original backup into NAND.

It can also be used regardless of JTAG Hacking in the following ways:

- Nand Dump
- Nand Compare
- Nand Write (any .bin image)

It uses a full (custom) GUI which saves as from typos or mistakes which can be done by manually typing in commands. It also saves as from looking up to Guides to determine the correct NAND addresses which are varied along with the motherboard revisions, since AutoHacker knows the motherboard we are working on, if it is exploitable etc. If something is not right (CB not exploitable / we have not patched XBR / we have not two identical backups) it does NOT overwrite our NAND.  ;D

NOTICE: This program DEPENDS on NandPro and does NOT replace it.
I will update the app regularly, fixing bugs and adding features. Of course, each time a new XBR comes out, AutoHacker will need to be updated (this goes without saying).

From farmboynick:

I have just launched XBMC [for Xbox1] on my Xbox360, it was so simple … I patched Avalaunch to boot from disk [with a halo title id] and put a XBMC folder on the disk. After Avalaunch booted I went to file manager and copied the XBMC folder to the E-drive, then simply clicked the XBMC XBE file and it worked.

So far I have been able to launch all XBMC versions that I have tried and can also launch surreal64 and some xbox1 games in file form from HDD. All from selecting the XBE in the Avalaunch file manager.  Some versions of XBMC can run picture files, some can run music files, so far I can’t get AVI movies to play or gain network access.

You need a JTAGed console, I found that answer elsewhere.  Here are the files needed; the burn instructions are not specific, but if you have a JTAGed unit, you probably know the drill.

ISO IMAGE – XEFU FILES

A Genesis/Megadrive emulator was made for homebrewed xbox 360′s:

Features:
- Graphics/Sound
- Achievements (don’t be a dumbass and use this on live, your console will be banned)
- Favorites Support
- XUI user interface
- SRAM save support linked to a user profile
- SaveState support (currently 1 per rom)
- Regular and Enhanced Graphics Filters
- Sound filters
- Threaded Audio
- Aspect Ratio/Stretch Mode support
- Previews

Notes:
This is still an early beta. There are bugs…
More of your favorite emulators/homebrew to come..no donations required…

Used to unlock arcade games and DLC, XM360 is essential to any jtagged xbox

>> Team XeDev released a bugfix version of XM360.

What’s new/fixed (since v0.8):
* fixed bug where Japanese DLC would prevent DLC scene from working (causing a 360 hang) (v0.8b)
* fixed bug where launching XBLA from the first screen would launch wrong title (v0.8c)
* fixed scraper for XBLA to include UTF-8 encoded text. This makes them look nicer in xm360, and gets rid of the trailing “a” that was on some titles. (v0.8c)

XeXMenu V1.1
=============

* Added HFS+ drive support

* Added ip adress information to the configuration

* Added skin loading verify routine to output errors on the screen while starting XeXMenu
* Added some user skins
* Improved ftp upload speed
* Loads nxebg.dds and icon.dds even if nxeart isn’t present
* Some other bugs fixed

Press “BACK” for detailed help pages!

Note: If you only get a black screen on startup try to delete the XeXMenu
savegame known as “Unknown Xbox Game” using system tab in dash

Team Cygnos integrates JTAG hack into Cygnos360 v2, news from Team Cygnos:

The last couple of weeks have been very turbulent for all Xbox360 lovers. We have seen some very good developments towards homebrew and better linux. We had fought with delays caused by the manufacturing and sourcing process which we finally solved. Now, Cygnos360 V2 is on stock at several shops and on the way to others. Production is still slow but ramping up and we are shortening delivery times. We did however not spend the time waiting doing nothing. We have used the time to significantly improve the functionality and usability of Cygnos360 V2.

* Most interesting new features are:
-Integration of the JTAG hack into our firmware so that we can play the role of the microcontroller doing the JTAG inject. This is running and tested on xenon and falcon mainboards. The other versions will follow via software updates. No taking apart or re-wiring needed. (please note that we cannot (yet) read and program the 256 & 512 Mb jaspers, 16Mb Jaspers are fine)
-The Cygnos360 V2 USB board now has a vertical USB connector. That way it is much easier and cleaner to install in your Xbox360. -We have added the possibility to communicate from “Xell” to Cygnos360 V2, for example to switch kernel via software command. (hotswap)
-We have added the functionality to enable switching between kernels having different SMC versions. It is not necessary to unplug the console for kernel switching, which is the case on current homebrew nand switchers and XD card solutions.
-We have added a back-channel to the Cygnos360 V2 that enables developers to talk back from applications running on the 360 to Cygnos. This way it is possible for example to send data from within the 360 to the PC via Cygnos360 V2. (e.g. temperatures, CPU/DVD key, or other nice stuff)

* Firmware and Toolbox
A flaw in our firmware has been fixed that caused the JTAG hack to work only once every power cycle. The JTAG hack has so far been tested on Xenon and Falcon. Opus is very likely to work as well. We appreciate, if anyone could test this on a Zephyr. Please report any errors!
The new toolbox in conjunction with the firmware will display serial output from XeLL, Linux, etc. in the console window.

Output coming from the Xbox 360 is colored yellow in order to distinguish it from toolbox messages (green). Since XeLL outputs the fuse settings via serial port, there’s now a very convenient way to save these to a file.
Download the new firmware and toolbox from here

* XeLL
Since our microcontroller cannot handle serial communication at 115200 baud, we had to make a minor modification to XeLL. The modification will set the baud rate register of the Xbox 360 to 38400 baud, 8 data bits, no parity and one stop bit. This implies that you have to build a custom JTAG hack image for Cygnos360 V2 with our modified XeLL. You can download the XeLL binaries and sources from here.

* imgbuild
The free60 imgbuild tool does by default not generate a full image as required by our toolbox. We therefore modified the build script accordingly. You can download the whole package from here.
Building your own image under Windows requires the installation of a Python interpreter. The simplest way is to download and install the Cygwin base system along with the “python” and “python-crypto” packages from here [cygwin.com].
Our modified imgbuild tool does not require a full binutils/gcc toolchain to generate an image. We included a precompiled payload binary instead. The SMC config block is taken from a dump of your Xbox 360. A typical command to generate and image would look like this:
python build.py dump.bin CBxxxx.bin CDxxxx.bin xboxupd.bin smc_hacked.bin xell-1f.bin
CBxxxx.bin and CDxxxx.bin are console (Xenon, Zephyr, Falcon, Opus, Jasper) specific, as well as smc_hacked.bin. Please use the xell-1f.bin from our XeLL package.

* Manual
For all interested for more info, check out the installation manual it contains a lot of info:

http://www.cygnos360.com/Downloads/Cygnos360V2_InstallationManual_V1.01.pdf

Happy Hacking!
Team Cygnos

[VIA]

celld0wn over at DemonHades have found the JTag port on PS3′s BluRay drive board.

Rough translation from celld0wn below:

I found the JTag port for the Blu-ray Reader on the PlayStation 3. Last night after finishing the research meeting I went looking for information about BD integrated reader.

In and looking at the information that I found on the back of the plate reader I saw that there is no connector terminals, these terminals belong to a connector which connects ‘something’ via terminals and through the Internet I found the points used in a JTag, including the TDO, TDI, TMS etc.

Originally developed for printed circuit boards, it is currently used for test of submodules of integrated circuits, and is also useful as a mechanism for debugging embedded applications, as it provides a backdoor to within the system.

When used as a debugging tool, an in-circuit emulator that uses JTag as the transport mechanism allows the programmer to access the debugging module that is integrated into the CPU. The debug module enables the programmer to correct their errors and code logic of their systems.

There are consumer products that have a JTag port integrated, so that the connections are often available on the PCB as part of the prototype phase of the product. These connections can provide a simple way to reverse-engineer.

As you can see we have a door strike to try to get the firmware, decrypted data, and all that is able to control the Blu-ray reader.

[ViA DemonHades]

Thanks SCE for news tip.