Well, at least step-by-step instruction "for dummies" then.
Youtube video of "Battlefield 3 Running on PS3 DEX BD Emulator via USB" that I posted earlier. I'm inclined to believe it is 100% legit.
Battlefield 3 Running on PS3 DEX BD Emulator via USB - YouTube
BF3 is a 3.55 Game
Originally Posted by Vegeta
D U P L E X
P R O U D L Y P R E S E N T S: Battlefield 3 - CFW 3.55 Eboot patch
Date: 10/2011 Languages: English
Platform: PS3 Genre: Action
DUPLEX has done it again - here's an eboot patch to play the retail Disc
based version from your hdd - on CFW 3.55 !!
We would usually just support BLUS30762 (Dcomics release!) , since we do
not acknowledge lame region dupes. It's just a waste of traffic unless the
nfo clearly states a difference to the first release (like different or
additional languages etc)
But since the BLES01275 dupe contains several new languages, we added a patch
for it too
Included are updates, cracks and param.sfo's for both
versions: BLUS30762 and BLES01275