Whether you are using an older model or a more recent one, here is how to turn on the flashlight on your iPhone.

Control Center remains the most reliable flashlight access method. On modern iPhones, swipe down from the upper-right corner; on older models with Home buttons, swipe up from the bottom. Then tap the ...

Next up is the action button, up on the left-hand side as you look at the iPhone, which has replaced the old ring / silent switch on recent models. This is the most customizable button on the iPhone, ...