ok heres the situation. i just bought a psp for the soul purpose of putting emulators and stuff on it but im a total newbie to this psp modding stuff. my firmware is 2.50 and i need to downgrade it to 1.5 WITHOUT grand theft auto. aparently there are ways of doing this but ive been on the net for ages and im getting all confused and frustrated. ive checked the umd "brick" writing thing and its ok. can anybody give me a straight forward step by step solution to this?! plz help!