Tool Needed:
1. Xbox Backup Creator v2.9 Build:0345
2. AP25 Topology Data (See Below)
Patching Current Games:
1. Until the new ABGX is released, games cannot be burned as they traditionally were.
2. Instead We will be using Xbox Backup Creator to inject the new Topology data for your games.
Follow These Steps:
1. Open Xbox Backup Creator v2.9.
2. Click on the Image Tools tab.
3. Change the Action from Extract to Inject.
4. Hit AP25 Sector.
5. Select the ISO you want to Patch. Then Select the corresponding AP25 Patch that you downloaded.
Master Topology Files:
http://www.xbox360iso.com/individual-xgd3-ap2-t536386.html (Need to register)
Thanks to kill_seth for his tutorial 
Source: http://www.xboxmb.com
