lg g4 815 working but no display .

[AC Question]

lg g4 working . i can hear it , even waking alarm ,but no display .
the thouch screen works fine , i can feel it response when i randomaly thouch the screen. but nothing on the screen . black.
i replaced the screen from ebay but the same problem.
please help.

 

[B. Diddy]

Welcome to Android Central! Perhaps there's a loose connection, or a problem with the motherboard. Or the replacement screen might be faulty. You may have to bring it to a repair shop.