HELP me hack a PSP 2000!!!!!!

[OriginalAznTimmy]

Hi well I have my bros psp slim and I try downgrade it with a pandora battery that I made with my psp 1000. But it didnt work. I think I did everything right though because I made a magic stick for his slim and when put the pandora in and hold the trigger button it stayed in a black screen with green light and no ctf pop up. When I tryed it on my psp 1000 it worked fine the ctf pops up then I can install it. His psp 2000 is ofw 5.51. He got it when It first came out with the Dexer bundal with family guy umd with it. He updated sometime in june. Is there anyother way to hack his psp without a pandora..Or better yet what I did wrong with the pandora.:sad: