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How to flash the iPhone screen or indicator light for notifications

With Flash for Alerts, you can set the iPhone indicator light, the screen, or both to blink when you receive a notification. That’s useful if you can’t hear the sounds that announce incoming calls or other alerts, or if you might miss audible alerts in a noisy environment.

The indicator light is the LED on the back of iPhone, next to the camera lens. You can choose LED Flash, Screen, or Both, and the light can flash even when iPhone is unlocked or in Silent mode.

  1. Open the Settings app on your iPhone.
  2. Tap Accessibility, tap Audio & Visual and tap Flash for Alerts. Then turn on Flash for Alerts.
  3. Select any of the following:
    • LED Flash: The indicator light on the back of the iPhone flashes.
    • Screen: The iPhone screen flashes.
    • Both: Both the iPhone indicator light and the iPhone screen flash.
  4. Turn any of the following on or off:
    • Flash While Unlocked: The indicator light flashes even when iPhone is unlocked.
    • Flash in Silent Mode: The indicator light flashes even when iPhone is in Silent mode.