My htc one s fell out of my hand earlier and the screen is black..tried holding down power button for 10 seconds no joy...can anyone help me please....
If the screen is not displaying anything than you probably cracked the AMOLED display. Sometimes it is hard to see the cracks or it may even be on a corner or something but once it cracks the display wont show you anything. And to top it off the display/lens assembly is like $200 or so.