(adsbygoogle = window.adsbygoogle || []).push({}); Hey guys my name is Zach, and I am pretty new to modding. I need help on getting a 3.55 PS3 on eBay. What should I be looking for? I know that if want to mod on Modern Warfare 3, that I need my PS3 to be on DEX Firmware. But how do I know if it's on DEX or not. How do I convert it? What do I need to do to put mods on my PS3 so I can mod Modern Warfare 3? Somebody please help! I'm a noob!