Open the Settings app
Tap Accessibility
Tap Audio/Visual
Turn on LED Flash for Alerts
Turn on Flash on Silent if you want the flashlight to flash only when the iPhone is on silent
Test it by locking your iPhone and receiving a notification
Open the Settings app
Tap Accessibility
Tap Audio/Visual
Turn on LED Flash for Alerts
Turn on Flash on Silent if you want the flashlight to flash only when the iPhone is on silent
Test it by locking your iPhone and receiving a notification