How to turn on LED Flash for Alerts
- Open the Settings app, tap Accessibility, then tap Audio/Visual.
- Turn on LED Flash for Alerts.
To prevent LED flashes when your iPhone or iPad* is in silent mode, turn off Flash on Silent.
LED Flash for Alerts works only when your device is locked.
* LED Flash for Alerts is available for iPad Pro (9.7-inch), iPad Pro (10.5-inch), iPad Pro 12.9-inch (2nd generation) and later, iPad Pro 11-inch (all models), and iPad mini (6th generation).