Backlight won't work after spill damage
I spilt water on my Macbook air 13" mid-2012 overnight and it has been working the rest of the night before I realized and shut it down the next morning.
Couple days later I tried to turn it on and it "works" but the battery is dead (well that's what the computer says and it only works when directly connected to power) and the backlight doesn't work.
I bought a new battery hoping it does the trick as for the backlight I'm not sure what to do.
As you can see on the picture, my whole logic keyboard is oxidized yet backlight seems to be my only problem (computer works great when plugged on an external screen and I can see through the little apple the screen is displaying when I put a light behind it).
Anyways here are my couple questions concerning backlight and overall oxidation:
-how to clean as well as possible the logic board so new failures don't appear?
-should I not touch the "working" parts in case I actually finish to kill them while cleaning them?
- which is the cable linking the logic board and the screen that is responsible for backlight? Is there any chance just cleaning the oxidation of the connector of this cable could get me the backlight back?
-how to diagnosed why the backlight won't work? Could it be the whole screen? Should I change the whole logic keyboard?
Thank you for everything, will be happy to add any necessary precision :-)
Is this a good question?