theres a way that you canuse a usb stick to downgrade a PS3/XBOX360 its pritty nice just go to youtub.com and type bluemodds he has all what you need and the download link so you can do it on PS3 you cant do it on 4.31 there trying to find away how to do it oh yea theres a jailbreak for 4.31 coming in march um i think on the 25th of march and go to my youtub channel and pleace sub becauese i told you away how to downgrade with a usb stick