I did a mistake
Today i was trying to conect my psp silver slim and i did donwload the version 6.20, before today everytin was working fine, but now my PSP didnt recognize the .iso the i had on it, i when to the PSP root and i try to add the .iso in different areas and still doing the same(dont recognize). I wonder if i do need to mod the PSP again, and if so how can do i do it, because i did buy my already mod. THanks