I've replaced multiple screens on iPhone 4's, they all do the same thing. either the screen is fully white or, it twitches. the one i just replaced you can see the screen but it has white streaks though the screen. Everyone says its a bad lcd. but i've bought many different screens and nothing changes. and when i lift up on the screen a little the screen works perfectly, you can see it good and everything, but as soon as i push down on it, it goes back to white and flickering.