LOOOOOOOOOOOOOOOL, of course it works to bypass the firmware, the games you are saying are all playble with that firmware.
for instance if you have 3.15 firmware, and you want to play killzone 2 why would you use the exploit? killzone requires an older firmware, you dnon't need to use it.
What we want is to use it if you have 1.50 for instance and want to play a game that is playble only by having 3.15 that is why this exploit exist.
But i say it again this exploit doesn't work anymore.
<eussNL> judge: ´so why did you torrent 5 million AVI of women moaning´
<eussNL> <TizzyT> i dont judge if it sounds good i listen