hi guys...i have a psp -3004 with 6.20 version and it was cracked with promethues iso loader.i download this update

http://pspslimhacks.com/6-20-tn-e-pe...#comment-77486

and i run it...but suddenly the screen has been black and only the green light is on...like this video...

http://www.youtube.com/watch?v=fUse3...eature=related

my psp is bricked...ok...

what can i do now???

Can anyone help me please ???