Originally posted by mark3000011
are you sure ? i hear that option can delete my CFW
From my knowledge, if you're on a CFW, if you're going to Restore System File. You have to make sure your on a 3.55 OFW or a 3.55 CFW. That's what I heard of all these years, but i'd take my word on Dro since he is a great guy to solve solutions here on the PS3 Forums.