this is straight from the front page of xbox-scene.com and is the method I used it is the best and I would say only worthwhile method of hacking an xbox with no chip.
Huge Xbox Software Exploits news update!
>> Much development has been done on the Xbox eploits the last few weeks and months in our forums which haven't really been covered in detail on the news (shame on me). I'll try to correct that error by giving you a nice overview of the current status and I will try to keep more up-to-date with exploit development from now on.
Not much has changed on the gamesave exploits, the 007: agent under fire(info), MechAssault and the non-officially-released Splinter Cell gamesave exploit are still working correctly on all xbox and kernel versions. There has been lots of development on the font exploits thought, the double dash exploit was already covered here, but now there's the “Ultimate Dashboard Exploit” aka UDE and very recently also the “Ultimate Dashboard Exploit2” aka UDE2 that even allows kernel 5713+ to use font/xbe exploits. Several tools to help installing and setup these exploits have also been released!
The new XBE (not really 'dashboard' anymore) exploits we have:
* The “Ultimate Dashboard Exploit” aka UDE (by Rmenhal - latest revision: v7)
Instead of exploiting the original xbox dashboard xbe the UDE exploit will exploit the C:\xodash\update.xbe file. Rmenhal released hacked fonts files to exploit this file.
From PedrosPad on forums.xbox-scene.com:
The result? The “Ultimate Dashboard Exploit” allows the booting of a habibi signed XBE, with no risk of a clock loop.
Pros:
+ Directing booting to Linux/PBL/Evox, etc.
+ No risk of clock loop.
+ Can still use custom sound tracks in games (the M$ Dashboard can still be accessed from Evox).
Cons:
- No Dashboard access to the XBOX!Live console.
- No XBOX!Live game access to the XBOX!Live console.
It achieves this by not actually booting a Dashboard at all, but by booting another M$ signed XBE, with the appropriate flags set to enable it to run from the hard disk. The actual XBE exploited is the C:\xodash\update.xbe, installed by the “updater to Live 1.0 Dashboard 4920” that is part of the original XBOX!Live startup kit, and shipped with most of the early XBOX!Live games (Splinter Cell, etc.).
There are a few different versions out there. Ensure you use the right expoit font for the right update.xbe!
Warning: This version of the exploit does not work on Kernels that prevent the execution of pre-live Dashboards, such as K:5713 or higher! Owners of K:5713+ XBOXs should look at the UDE2
More info: forums.xbox-scene.com (by PedrosPad).
Download fonts: here
* The "Ultimate Dasboard Exploit 2" aka UDE2 (by Rmenhal - latest revision: v7)
UDE2 is the solution for people with newer Xboxes with Kernel (bios) 5713 or higher. Kernel 5713+ does not allow to run pre-live dashboards, thus preventing the UDE(1) or older xbe/font exploits to work.
Rmenhal found that NFL Fever 2003 !Live content (thus signed for HD) has/had an update.xbe that works with all kernels (3944-5838). PAL, JAP, and ELSEWHERE owners can use it too, but it requires an edit of the EEPROM to region 1 (by devz3ro) for those specific consoles. Rmenhal made his fonts work with this specific xbe too.
More info: forums.xbox-scene.com (by devz3ro).
Download fonts: here (also includes UDE1 fonts)