itz easy oll u have to do is dowload chicken n put it in ur photo folder then open the photo folder and go to the very end ur psp sould boot if not kepp tryin it

the ur version will become 5.03chickhen R2
then u download any cfw n run it

for chickhen go here::_ http://pspslimhacks.com/chickhen-r2-for-frimware-503-released/
and for cfw go to http://pspslimhacks.com/custom-firmware-enabler-v10-load-m33-cfw-via-chi...

befor u do this watch how to do it http://www.youtube.com/watch?v=EAoCDBwhybo