Chosen Solution
A while ago I attempted to put a light up Apple logo in my iPhone six. The phone was working perfectly at the time. I was unsuccessful in getting the light to work, and now the screen doesn’t work either. It is being registered by iTunes though. What might the problem be?
If the light up logo is drawing current via the backlight circuit, you probably blew the filter (if your lucky) or the entire backlight circuit (if you’re not lucky). Did you disconnect the battery before before doing the mod? that could certainly damage the backlight circuit. You will have to have the logic board looked at by a micro-solderer to be certain.
