EBOOT Patcher v1.0

Maybe you don’t need to upgrade to Custom Firmware 5.50 GEN-B2 after all… Read the title; follow the instructions (see screenshot). But before you dance; thank mc707 for EBOOT Patcher v1.0.

Download:
EBOOT.BIN Patcher v1.0
5.55 & 6.00 Games Decrypter
PRXdecrypter v2.3

Source: psp-hacks