I recently dropped my psp from very high and the wifi brok, kept giving me internal error. I tried updating and downgrading no luck. then i opened a spare psp that is completely broken, dont ask why , and took out the wifi card and placed it in the usuable psp. everything works including the wifi but when u play any sounds on the psp using the speakers, the psp wont play anything, it acts as if a headphone was plugged in and i can press the musical note button and it changes when its not supposed to. Also when i actually do plug in headphones the speakers then begin to play audio. any clues to what might be happening. when i changed cards back it worked fine again. I think it might just be a compatibility issue between the old wifi card and the newer psp.