In June 2017 Apple updated its 13" MacBook Air with a newer Broadwell Intel Core i5 processor, resulting in slightly increased performance and battery life.

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Topcase exchange US -> EUROPEAN

Hi everybody.

Can anybody tell me how to sync a A1466 logicboard with the Topcase. Changed the topcase from US layout to european Topcase, but left Shift Key is not working.

Already tried several steps (Internet recovery, SSD from european version with OSX pre installed) but nothing solved the issue. :-/

I'm not able to change the layout from US (10 Keys between left and right shift key) to european layout (11 Keys between left and right shift key)

Thanks in advance,


Contestado! View the answer Yo también tengo este problema

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@littlebigb - Did you also switch-out the trackpad or did you reuse the one from the original uppercase?


Hi Dan,

Yes, I reuse the one from the original uppercas.


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Solución Elegida

If you have performed all software tweaks found in system preferences/keyboard to no avail try resetting SMC: turn off the Mac, press'll see magsafe light going from amber to green and amber again. Boot the Mac and before the chime press alt+cmd+P+R and keep them pressed until the second chime to reset Pram. If no joy, try reseating the keyboard cable on the logic board.

If none of these work, possibly you got a faulty topcase.

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+1 vote for faulty topcase if SMC reset does not help.. though I feel I might be missing something..


Thanks. I'll try it tonight. :-)


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