No backlight after liquid accident?


About a month ago a glass of soda went by accident over my MBP into the keyboard. I immediately removed the battery and power connection. After a few days I tried to start my MBP. It worked, but there was no backlight of the display. The display semms to work fine, but without the backlight. And I also recognized that OS X says that there is so Airport-Card installed.

I then had a look inside of my MBP and it seems that the liquid didn't get in touch with the logic-board.

I am a bit confused now, because the liquid did't get into the display. Does anybody have an idea what could be wrong? I would be very thankful if someone could help me out.

Best wishes,


Answered! View the answer I have this problem too

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Hi! There are four components which can cause the backlight to fail: The inverter cable, the screen, the logic board, and the inverter itself. The inverter cable or screen are often the cause, the logic board is less common, and the inverter is almost never the problem (despite popular opinion to the contrary, usually from people with book knowledge but no actual repair experience). I would connect your computer to an external display to rule out the logic board having a problem. Next, it's almost a tossup between the screen and inverter cable, so you may want to try the cable first due to the fact that it's a relatively cheap part.

While you are in the machine dealing with the inverter cable, you might want to remove the Airport and clean its contacts with rubbing alcohol, and see if it is recognized after that. The next step is probably to replace it. It's possible the liquid damage caused a logic board issue which is resulting in the Airport not being recognized, but hopefully not, and you won't know until you've ruled out the Airport itself as the problem.

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I have a similar problem, spilled a cup of coffee of the keyboard. Everything works just backlight not working, and my KEYBOARD backlight is also not working... Not sure what is broken. MacBook Pro 2010 13"

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tscheizn will be eternally grateful.
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