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Hello, I just did a logic board replacement on a water damaged MacBook Air, but now the keyboard and trackpad don't work. I have no idea if they worked before, but I can power on the machine. What? It doesn't respond during booting either, PRAM and SMC don't work because keyboard doesn't work. Any ideas?
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Plug in a USB keyboard & mouse. If these work then you know the issue is within the upper case keyboard/trackpad and/or the ribbon cable connections.
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