1) Download the pack rtu i prepared to you: br 2) extract-it to your psp br 3) Exit the usb mode and launch the NEWPSARDUMPER br 4) Press X and you return to the xmb after a min. br 5) Go to your pc and you need to do the same at me. br 6) return to your psp and launch the update 5.03 and that-it.