I've been using the iPhone for over a decade, and I'm pretty confident I know most of the tricks in the book. It's not just my job description that requires me to stay on top of each iPhone and iOS ...

Depending on which iPhone you have, your smartphone will have two volume buttons, a side button, a Ring/Silent switch, or an Action button, and if it's an iPhone SE or older iPhone, a Home button.

If you're listening to music or a podcast and want to change the volume without unlocking your iPhone, then you probably press the buttons on the side of your phone. Those buttons can increase or ...