No backlight no display
I replaced a screen on an SE, and not the phone does not display anything. Backlight stays off, and shining a light on it reveals nothing. The phone does turn on and it does vibrate when you switch the silencer.
Tried disconnecting the battery and holding the power button, no dice. Tried multiple screens that work, again no results. This sounds like a board issue. What do you think it could be? Backlight coil? Fuse? Some other chip?
Is this a good question?