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Why is my MacBook Air stuck on all caps after top case replacement?

So first of all, I spilled juice on my MacBook Air (A1466) 2 months ago. I cleaned up the motherboard after about a month of not using it, and it started booting up. I could log in as guest, but I couldn't log into my main account because everything was in all caps, I couldn't get any numbers or lowercase letters.

I then replaced the top case, but kept the track pad from my water damaged one, because it still worked. However, after the top case replacement, it is still stuck on all caps. The caps lock button itself seems to function normally, but it has no effect on what's being typed. I tried using the keyboard viewer, but even that types in all caps, even if caps lock is not on and the shift button isn't pressed. Is there anything I can do to fix this and be able to log into my MacBook?

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Sorry guy, Yull need to replace your trackpad MacBook Air 13" (Mid 2013-2017) Trackpad and here’s the guide MacBook Air 13" Early 2015 Trackpad Replacement

The trackpad is also the junction point for the keyboard signals and where the decoder sits. As you have already replaced the keyboard it can only be the trackpad that the decoder logic has a problem.

MacBook Air 13" (Mid 2013-2017) Trackpad图片

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MacBook Air 13" (Mid 2013-2017) Trackpad

$89.99

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Hello,

In this case, if the keyboard sort of works, I’d advice to do a SMC reset and PRAM reset and see if it will let you do these two things. Also, try an external keyboard to login to the main account and see if you can now type in the password. If you can login, I’d suggest to do a backup of all of your data and then try to troubleshoot again in case something breaks.


Cheers!

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Jose Ramos 将永远感激不已
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