How to unlock the Function (Fn) key? If your keyboard is producing numbers instead of letters, hold down the Function key (Fn) on your keyboard to be able to write normally. If this doesn't work, try ...

If something goes wrong with your Mac accounts, you may still be able to gain access with the Recovery Key.

The key fob is your lifeline to your car, letting you unlock the doors and set off the alarm, at a minimum, but how can you tell if it needs a new battery?

The tap-to-unlock function is the same as Apple’s current Home Key feature — just walk up to your door and hold your watch or phone up, and the door unlocks.