My psp was once like that. You need to download a program either on your own, or by a mechanism. I send to repair and they say its not a problem in the psp. They say its as if "the psp don't like the microSD card". The program is called "Chickhen". Its safer to as a professional even though it may be costly. Its just that it could connect or read. Not much problem, but if the psp have a certain problem, I still suggest you send it for checkup. And they will teach you how to use the program incase it go "boof" again.