Hello,
I have a MacBook Pro (Retina, 15-inch, Mid 2014) and I changed my keyboard too and the keyboard is working, but only they keys zxcvbnm,. are not working (nothing happens when I push this buttons), all other keys are working.
I have also replaced the trackpad on my MacBook Pro, but after the replacement it isn’t working. :(
I would be glad for every hint. thank you very much in advance.
Adi
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The keys z x c v b n m , . all use the same scan line which implies the keyboard and/or its ribbon cable connection to the logic board is bad. The Trackpad issue could be a similar issue depending on how you replaced it.
The ribbon cables can easily be damaged I would suspect that’s the issue here.
What does the onboard diagnostics tell you? Restart your system and press the D key.
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