flash query

[atomicareprise]

so i tried changing my cold boot  game boot etc...

so first i made a back up for it...

so i tried changing my intro then it worked...

so i tried changing other stuff..so i thought i was good to go...

i reboot my psp then when sony logo appears i know my intro don't work

cos i tried to change it with GOW intro..

that's when my problem starts...it just freezes on that spot..

it won't like it used to...i just get stuck on sony logo...

help guys...what should i do?