Chosen Solution
So my macbook arrow key fell off, i’ve watched some videos and i still don’t quiet understand. I don’t have any equipment, I could get some though.
No idea how that might happen but keys don’t usually get off unless they’re broken. If it’s not broken a simple pressure would be sufficient to lock back in place the black upper part into the white scissor mechanism. The only way to understand how the two parts match correctly, if watching tutorials didn’t work, would be be to remove carefully another key and compare parts with good light and magnification. That would allow you to figure out what actually broke but you’ll likely need a replacement key anyways.
