These too are common symbols you’ll find on the function keys. They normally feature what can best be described as a ‘sun’. They’re in pairs where one decreases the screen brig… See more

If one of your function keys has an Airplane symbol on it, then the button will toggle Airplane … See more

There are a few different variations of this symbol that you’ll see but anything that looks like a screen is for changing Projection mode. It’s the equivalent of tapping th… See more

We mentioned that screen brightness buttons come in pairs but, you may have a function key that carries another brightness control symbol. This is for controlling the backlit key… See more