I have a Phat PSP with custom FW 4.01. Any ideas?
install to the GAME folder, and not GAME150. make sure emulation is set to 1.5 in the recovery menu, and if it has it, the umd option to the sony option or the M33/OE option, either will suffice. should start fine after that.
had to do this to get bookr to work with the 5.50CF thats floating around.