Chosen Solution
Im sure it’s not a problem with the screen itself. When I plug it in it occasionally vibrates. The touch digitizer connection seems broken but everything else seems fine. If it was just a broken touch digitizer then it should display something. Any ideas?
Have you tried booting the device without the Prox flex and homebutton flex? And the LCD is turning on but no display is showing? Love to here more about this one(:
If the phone vibrates, that only means that the phone is functional. If the display is black/white, that can very well mean that you broke the flex cable that connects the screen to the motherboard. If the display is displaying something(battery charging or home screen) but it cannot sensor your touch, it is the digitizer’s problem. Either way, the solution would be to replace the whole screen housing as it is very hard for normal consumers to separate digitizers from screens and fuse together a working one. Note: If your iPhone is 6 or above, it is very wise to bring it to the Apple Store because any change to the screen housing would deactivate your touchID
Connect your device to your computer and launch 3uTools to check what mode your device is in. If your device is dfu mode or recovery mode, you can restore it.