Hey! If you need to turn on your iPhone's FLASHLIGHT super quickly -- like you feel unsafe in a dark parking lot -- here are two ways to pull it off: Simply say "Hey Siri, turn on flashlight," or program the back button (Apple logo) to turn on the flashlight when you double-tap it (Settings - Accessibility - Touch - Back Tap). This is #TTOTD #TechTipOfTheDay no. 369.
