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The April 2014 update of Apple's 13" MacBook Air features refreshed dual-core i5 and i7 processors, plus slightly increased battery performance.

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Display doesn't work after replacement

My Macbook air display was broken and I bought a new display assembly.

I've replaced with the new one, but nothing is shown in display.

I realized that I connected the display ribbon cable( on the top left at the logic board ) as wrong side... ( top and bottom were changed... )

I changed it correctly and turn on the Macbook, but it does not show anything only black screen.

There is no light on the apple logo.

If I turn on, the fan rotates well.

I've checked the back light fuse on the logic board with my tester, but it is not a problem.

Are the GPU or Display Ribbon Connector or something wrong?

Do you know what I have to do in order that the display works or in order to diagnose?

Answer this question I have this problem too

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Was the old screen functioning enough that you would be able to see anything? if you still have it try it see if you get anything. even if its cracked just to see if it works and rule out a damaged logic board etc.

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