WHAT IS YOUR FIRMWARE? HAVE YOU EVER UPDATED IT?
this is the easiest way, and the way i did it.
also, do you care about playing the NEW NEW games, cuz those require a little work.
start off finding the magic memory stick maker. rain something or rather.
http://dl.qj.net/download/rains-ultrali ... 4-v12.html
that one. from there, (im guessing you have a psp slim?) make a pandora battery
http://www.youtube.com/watch?v=rJ3EZ11ltA0
easiest vid i could find. i hate when you see the person, but it works.
now after you have it made and set up, go ahead and install the firmware
to do so, put your memstick in, hold L and put your battery in (itll turn on automatically). also, having your PSP on the charger is a good idea. then you can let go and click on install 5.00 CFW and itll do the rest.
once its done you can undo the pandora (taking a pencil and running it over your cut circut(slim battery) and your dont hacking the system.
ill stop here an d let you tell me anything that went wrong