Model A1286. Released February 2011 / 2.0, 2.2, or 2.3 GHz Quad-core Intel Core i7 Processor

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Only LCD not working after logic board cleaning

I have 15 years of computer experience so I am not a newbie...

My WIFI started going out about a week ago and i took it into Apple who claimed there was water corrosion damage, and I needed to replace the entire logicboard...

I took out the mobo and cleaned it with professional quick evaporating corrosion cleaner... thoroughly cleaned the mobo and after putting everything back together ONLY the LCD doesn't work...

My thunderbolt display works perfectly and everything else...

Wifi works great as well now...

Any ideas?

Answered! View the answer I have this problem too

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Try plugging the computer into an external monitor. Could be the ribbon or connector was damaged during the process. Or perhaps the backlight has stopped working.

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Looks like an answer now.. :-)

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