Hi noob warning! I just modded my brand new psp to 3.40oea. everything was fine on day 1. Day 2 certain csos stopped loading. the psp just hanged. i had to restart by using the power switch. so now i want to return to 1.50 and then reflash to maybe 3.51m33. but i just cant get any info on how to revert back to 1.50. Help me please!!