About PS3 OS Tags: Console Gaming Downgrade Playstation Video Games Last response: October 27, 2012 9:38 PM in Video Games Share danishfaridi October 8, 2012 5:50:55 PM please help me my PS3 version is 4.20 can i downgrade my PS3 OS version to 3.55 Thanks. More about : ps3 cl-scott October 8, 2012 9:28:33 PM No. Sony does not make this possible. rahul255800 October 18, 2012 6:08:04 AM thanks.. Can't find your answer ? Ask ! Get the answer computertechie1337 October 27, 2012 9:38:59 PM rahul255800 said:thanks.. there prop is a way you could like you can do with apple software. Apple doesnt let you do it but "hackers" can find a way. http://www.se7ensins.com/forums/threads/downgrading-4-2... i found this article for you. sience i dont know how techie you are! good luck!! Can't find your answer ? Ask ! Publish Related resources : ForumIs My PS3 bricked? ForumPC or stick to my PS3 ForumShould I play these on PS3 or PC ForumSSD for PS3 ForumUpgrading PS3 HDD ForumPs3 , upgrade, or new tower? ForumDefinitive Answer on PS3 and Asdvanced Format / 4k Sector Drives? Forum600$ mini gaming pc or ps3 ForumGaming pc or ps3 ForumWe have done it before, but; Xbox 360 vs PS3 ForumPs3 games on a pc ForumPs3 video card = what in pc video card? ForumPS3, and Wii adding to wired network. ForumQuestion about vga to ps3 ForumQuestion about ps3 blu ray Forumanyone know anything about connecting a PS3 to an LCD monitor? Forumi got an idea which needs answerin about ps3 and my monitor... ForumWho knows about The European PS3 Specs??? ForumWhat Wired says about PS3 graphics compared to xflop 1.5 f.. ForumKutaragi babbles about PS3's HDD plans More resources Read discussions in other Video Games categories Console Gaming PC Gaming Handheld Gaming Nintendo Playstation Servers Sims World of Warcraft Xbox 360 !