They may be the least high-tech part of your smartphone, but flashlights are always useful. Here's how to turn on the flashlight on Android and iOS devices.

Can't figure out how to turn on the flashlight in Android? Here are the most popular ways to get a little light.

On Android phones that support gestures (like OnePlus phones), you can draw a gesture on your phone's screen to turn its flashlight on and off. First, you'll have to configure the gesture on your ...