I have a 2015 MacBook pro.

It wasn't turning on since I left it off charge so I disconnected and reconnected the battery, then it turned on. However, some of the keyboard keys weren't working as a result.

Then I repeated the procedure again - I disconnected the battery again, and now even more keyboard keys aren't working.

The modifier keys (cmd, alt, ctrl...) don't work. And I can't log in (due to keys not workidng)

  • You either nudged a ribbon cable, or broke the keyboard PCB. Third time lucky?
    – Tetsujin
    May 10 at 17:13


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