ok well im at custom firmware 3.03 oe-c and i realli wanan go back to 1.50 i keep following these rules but no dice? please sumone help me.......ps:if i downgrade can i upgrade back to 3.o3 oe-c wit no problems....here are the rules i followed 1.download the recovery pack 2.extract the content in the recovery pack onto the computer 3.place the "RECOVERY" folder into the game folder of your psp 4.obtain the 1.5 eboot and place it into the "RECOVERY" folder. Rename it "UPDATE.pbp". 5.Go to the recovery menu on your psp by turning off your psp. Then hold the R trigger and thus turn on your psp and you will be at the recovery menu. It should look like a purple screen. 6.Go to the option "Run program as /PSP/GAME/RECOVERY/EBOOT.PBP 7.hit X and the process of the downgrade will begin.