Chosen Solution
My Magic keyboard ‘fn’ and ‘control’ key are not coming to the same height as the other keys on the keyboard. When I try to reinstall them they often get stuck down. Also the arrow keys (‘up’ and ‘down’ arrow keys) are broken and I am need of a replacement for those. Is there a possibility that I can get a free replacement from Apple? The model number of my Magic Keyboard is: A1644
Sadly these keyboards aren’t very repair friendly! Other than popping off the keycaps to clean under them nothing internally is serviceable as Apple doesn’t offer parts for them. If you had a junker to steal parts from then you might be able to fix yours. In this case I think your membrane blister has failed.
