I just had my laptop's screen stop working, but the external display ports all work. I just replaced the screen, and now it lights up, but still won't display anything but through the external.
Then either the screen was not installed properly or it was the wrong screen. Did you replace the inverter also? Double-check the connections?
There is no inverter as it's LED, so there is only one ribbon cable, which only plugs one way, so I don't think I installed it incorrectly. It may possibly be the wrong screen, but it's an identical model # as what I pulled out
N156BGE -L21 Rev C1
I'm contacting the seller to see what information they may have.