Edit) Title was supposed to be "dirt inside"...... my bad. I've got a PSP with some kind of a dirt(too large to be called a dust, bigger than a pixel) in the screen. And I've seen online tutorials to remove front plate and clean the screen, but I wonder if it's really something anyone can do. If it is, I would like to remove it... Have anyone here done this job? How much skill do you need to do this?