OK, i dont know if the answer is already here on this site coz i am easily confused by all this jargon. I have official firmware version 3.40 on my psp - downloaded from sony updates so i havent modified it in any way. I want to run downloaded playstation games on it and i do not know how to downgrade then upgrade the firmware in order for me to do so. Is it possible and is anyone able to explain how in a language i can understand!!!!! Thanks!!!!