Chosen Solution
I replaced my phone screen for the iPhone 6, did everything just fine (Ive installed many phone screens). I go to turn it on after letting it charge for a while before hand, and nothing happens. So I try a hard reset. Still nothing. I plug it into iTunes, screen is still black, but it shows up in iTunes? But, when I take it on and off the charger, no charging noise occurs whether on vibrate or the sound is on. It also doesn’t make a noise when I flip the switch either way. I ordered a new screen again thinking it is the LCD, but I am really worried it is something else?
Keely, Found this info. from another post, possible no back light after screen replacement. In IPhone 6 can be caused by damage from mixing up the screws. Using longer screws where they are not to be installed. Check the attached links,instruction and guides, Good luck. I hope this helped you out, if so let me know by pressing the helpful button. https://www.youtube.com/watch?v=a_gqaj1-… http://hackaday.com/2014/10/19/using-the…