I repaired the home button in my phone and now i have a black screen with blacklight only coming on. I can install the hard drive in to my other iphone and every thing works perfect. So i the hard drive is ok and i can put a different screen on the phone and i get the same thing. So its not the screen or the hard drive any thought? I know this is my first post here but i fix iphones to pay for school and could really use the help! Thanks, Beauchamp.