but you could always test with another, USB, Keyboard.
Doesn't need to be a Mac keyboard, anyone will do
BTW, "there is a hardware failure on the keyboard or the n key" is the same thing.
P
Hello,
If I have a key on the keyboard that no longer works, such as key n. I wanted to know if by starting in single user mode and the n key not working, are what one can conclude that there is a hardware failure on the keyboard or the n key?

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