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My separate keyboard (a Das Keyboard 4 Ultimate with ISO layout) has, to my chagrin, a different and erroneous keyboard mapping than the MacBook's built-in (also ISO).

The biggest annoyance is the different mapping of the ' and < keys.

The built in laptop keyboard is like so (Norwegian locale, ISO layout):

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While the separate keyboard behaves like so (ANSI layout):

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This is not the correct layout. E.g. the Enter/Return button is wrong (1 row). It should be like this (again ISO layout):

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Note that the Enter/Return button is 2 rows high here.

Unfortunately, the Mac setup does not fully recognise the keyboard:

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… even though it lists it in System preferences, under Modifier keys:

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Changing between ISO and ANSI does not help:

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Note that the Ultimate keyboard is completely blank:

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Finally, on the Keyboard Setup Assistant intro screen, it is stated “Your Logitech device cannot be identified and will not be usable until it is identified” (Emphasis mine). While I have a Logitech mouse, the keyboard is, as described, from another manufacturer. I have never attached a Logitech keyboard to the computer.

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I have tried to search for answers here on Stack Exchange. I have found similar topics like this, this and this, but none that answers this issue.

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    Ah, OK. I see it now.
    – Tetsujin
    Apr 7 at 8:51

1 Answer 1

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After removing the com.apple.keyboardtype.plist file (found in /Library/Preferences/) and restarting, the Mac stopped referencing the non-existent Logitech keyboard. I could now use the Keyboard Setup Assistant, and finally the ISO layout was respected, solving the problem.

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