How to go back to official firmware
Hi I've been using my 3.55CFW KMEAW PS3 for about 1.5years now and finally I've played all the games I wanted and want to go back to official. It was fun and great but I think owning games that I love is good for me. So a question, what do I have to do to go back to official, the latest 4.11 and keep all my trophies? I know I have to delete my Multiman and all the PSN games downloaded right now but is there anything else I need to get rid of? Is there an easy way to do it? I don't want to lose my trophies by formatting so that is not an option. Another question, I've never logged on to PSN while I was in CFW, could I get banned somehow? Plz help!