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My left ⌘ (command key) doesn't respond, while the right ⌘ key works fine.

  • my Mac: MacBook Pro (Retina, Mid 2012)
  • on keyboard viewer: when I click left ⌘ no respond on keyboard viewer, but right ⌘ and all other keys have.
  • I have opened the left ⌘ key, nothing seems wrong with it. (The left ⌘ has no physical damage.)

Anyone know what is wrong with my left ⌘ key?

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    Your keyboard is broken. You need to take it in for service and have the keyboard replaced.
    – Allan
    Commented May 1, 2016 at 9:18
  • Thanks @Allan, I guess you are right, do you know how much it coast ?
    – GuoJunjun
    Commented May 1, 2016 at 17:00
  • @Allan, I'm having a similar problem with my keyboard--do you know if you can get a keyboard replaced for a Mid-2012 MBP?
    – Steve S
    Commented May 1, 2016 at 20:39

1 Answer 1

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Try restarting in Recovery mode by holding the right command key and R during power-up. If that works (i.e. you boot into Recovery mode), then try doing the same with the left command key.

If that fails, you have a defect keyboard that needs replacement.

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  • Hei, @jksoegaard, thanks for your help. I tried your method, the right key works but not the left key. I will take it to the service when I get time :)
    – GuoJunjun
    Commented May 1, 2016 at 17:03

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