Hello just replaced an iphone 6 screen. Turned it on and it was working fine, then turned off to finish the rest of the installation. Whenever i did that tried turning it on and it wouldnt. I then connected to itunes and nothing came up, so i put it in DFU mode and it showed up on my computer. So then i thought it was just the screen sent it back and ordered a premium iCracked screen. Had the same problem nothing visual came up on the screen but showed up on itunes when i put it in DFU mode. I have no idea what to do, im out lots of money because of this, if someone knows how to help please do so! THanks!!