If you are attempting to load Xbox Media Center onto your Xbox and you are stuck with MXM because it keeps assigning a static IP address of 192.168.0.3 then you should follow these steps. This works in Windows only for as far as I know.
Make a backup of ltools_MA_v1.8.rc1.zip before proceeding
Step 1 - Prepare a new ltools gamesave ZIP
a) Find your ltools_MA_v1.8.rc1.zip file and right-click it choose "Explore". Now, navigate within the zip file to UDATA/4d530017/62D648EBF155 where you'll find a file called "mxm.xml".
b) Drag this file to your desktop (or anywhere you feel comfortable). Leave the explorer window open. Edit this file using notepad or equivalent. At top of the file you will see:
c) Change this to the network settings you desire. Save and close this file.
d) Drag this file back to the ZIP explorer window overwriting the old mxm.xml file. Close the ZIP explorer window.
Step 2 - Uninstall the UXE exploit
Power your Xbox and you should be in MXM. Goto "ltools" then "UXE menu" then "UXE uninstall". Follow the instructions and wait for the green flashing light before turning, as before with the install.
Step 3 - Remove ltools from the Xbox
Turn on your Xbox and get to the original Dashboard. Navigate to the Mech Assault game save on your Xbox. Press "A" then "Delete".
Step 4 - Copy the altered ltools to the Xbox
Fire up Action Replay on your PC and do the following:
- delete Run Linux from the memory card (left column)
- delete Run Linux from the PC save library (middle column)
- drag the new ZIP file to the PC library
- copy the Run Linux file to the memory card
Copy the Run Linux gamesave as you have done before to the Xbox.
Step 5 - "Run Linux" again from Mech Assault
Basically, you are repeating the exploit with the new ZIP file complete with the changed IP settings.
This worked for me just now, as I did a test that changed my MXM IP Address to 192.168.0.22. You can change the settings to whatever you like. If you make a mistake on the IP address or subnet, you'll have to do this all over again.