Around Aug , 09. The hacker who found the original exploit in the King Kong game using a shader DMA attack , found a new way to use the same code by connecting 3 wires to the 360 motherboard and no longer needing to use the game hack. This also allowed the hack to work on more systems than before. The fix was to update the 2nd stage bootloader. The last known Dashboard version to be vulnerable is 2.0.7371.0. The other thing which needs to be checked is the MFG date anything after June 18 , 09 is out even if it has a dashboard version of 2.0.7371 as they updated the 2BL at the factory before boxing it.
Note: the MFG date format is yyyy/mm/dd, 2009/06/18 is the format of the final date.
So how do i check if I have a vulnerable machine?
If you have a blade style dashboard , you are exploitable no need to check anything else. If you have the NXE you need to go to the last tab called “system settings” from their the first one will be “console settings” select that go to the bottom where it says “system info” , don’t click on “system Info” just look at the right pane if it says 2.0.7371. or any lower number you are in luck , 2.0.8498 would be an example of an unexploitable dashboard version. If you have a low enough version dashboard and your system was made before June 18th 09 , you can run homebrew on your xbox 360.
If you are exploitable then this means you can have the Jtag mod performed. Their is one more check which needs to be made. This is the 2BL a.k.a second stage bootloader , I have included a more detailed description of what that is , the link is below this page.
The newest dashboard is 9199 they do go in numerical order for the most part. So anything over 7371 is not exploitable and you cannot run the Jtag mod on it.