Chosen Solution
My screen went black (no lit up screen or light to the Apple logo on the back) so I took the screen off/apart to expose the display LVDS cable. The connection on the underside of the screen had what appeared to be corrosion on it so I replaced the cable. (Photo attached) With the new cable the screen and Apple logo were lit up again but still just a blank screen. Using an external monitor everything looks fine. Any idea what the issue is? Could it still be hardware related or now a software issue?
Update: Images to show cleaned connector (with soft brush and isopropyl alcohol) at the base of the display as well as the resulting lit but blank screen
It looks like the displays connector also got wet and was also corroded too. Someone with good micro-soldering skills might be able to replace the connector otherwise it’s time for a new display assembly.
