Your iPhone has a flashlight, but I don't believe it flashes. Take a look at the information below for the Control Center. The flashlight icon is at the bottom-left corner of the window.
Control Center gives you instant access to the camera, calculator, AirPlay, and other handy features. You can also adjust the brightness, lock the screen in portrait orientation, turn wireless services on or off, and turn on AirDrop. See AirDrop.
Open Control Center. Swipe up from the bottom edge of any screen (even the Lock screen).
Open the currently playing audio app. Tap the song title.
Close Control Center. Swipe down, tap the top of the screen, or press the Home button.
Turn off access to Control Center in apps or on the Lock screen. Go to Settings > Control Center.
