hey guys um i need someone that can help me and guide me on what i should do next. i have made a mistake in updating my psp to firmware 3.40 (normal sony upgrade) and i know that i needed to upgrade to a 3.03 then downgrade to a 1.50 and then go up to a 3.40 OE to play my iso files. can someone please tell me what i can do now??? any kind of help would be much appreciated. thank you!!!