Think you know iOS inside out? Trust us, there's way more to uncover. Unlock your iPhone's full potential with these hidden ...

Tap it, and a slider appears on the right displaying the ... such as "go to sleep," "wake up," "lock screen," or "show grid continuously." That last one puts an overlay grid on your screen ...

Think you know iOS inside out? Trust us, there's way more to uncover. Unlock your iPhone's full potential with these hidden tweaks. I've been writing about computers, the internet, and technology ...