Left command key does not work 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?
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.