yeap,i know it that too, but as i said touch screen working but screen is black i donna know, if this can be solve, may be my n9 no have seriosly problems and it can be repair and in this case it will be not good if im ignore this buy new display which costs at least 80-90$ So who haw any experiencies in this, im waiting your posts,please sos

PS: may be i'll do some video of how i use my n9 touch screen and it working instead of lighting off.