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Origineel bericht door: Otto Grandt ,

Tekst:

Hello all. My Macbook air mid 2012 was freezing and having start up problems (boot). Only got a black screen. It was fixed by warranty repair.

Symptoms: Personally I think it was when internal temperature was changing. Shortly after disconnecting or reconnecting charger. The test that always failed was with charger disconnected. Computer not used fore hours. Then rebooting several times. It would always end up not starting or freezing.

Remedy: Logic board was replaced under warranty. For my air it was 661-6634  MLB, 2.0GHZ, DC, IVB, 8GB, 13MBA

I googled this board and found these good associated links:

http://russell.heistuman.com/2011/05/09/baking-a-macbook-pro-logic-board-video/

http://www.powerbookmedic.com/parts/661-6634/Board-Logic-20-GHz-8-GB.html

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open