oki first u need battery in 75% or more than if not its will not let u update your PSP 3.71 to 5.03(PSP3Kv3/3K)
Download Link:
PSP 5.03 Updatethen next if update done check first the version of your PSP in system information if its display 5.03(good
)next u have download Chickhen the eggs picture upgrade hehe
Download Link:
PSP 5.03HenR2inside have 2 folder 1 Phat 1 Slim just Copy the Slim Folder Files To(If u connect your PSP then its will display on PC)
Example:K:/PSP/Photo(inside here)
dont paste picture in picture folder because if u post it its will low chance the rate
next start patch to HenR2 now remove the USB then in Your PSP Go to Picture Then Enter Just Wait Its automatic If the Screen Stuck its Means Failed If the Screen like Color Bug things its means Success
And Now U need The Files Call 5.03 Gen-C
Download Link:
http://www.mediafire.com/?h7dnpfh4nfur18vthen now go to Game and Memory stick Then Click The 5.03 Gen-C
its automatic if not its display something like clicking O or X botton to continue then just try X its mine's not sure of your if u done click its automatic reboot but not turn off the lights then the patch success now u can play ISO Games if have any Problem Asking Me on Garena Or Yahoo Chat Place(Coming Soon)