How to Make Your iPhone Light Up When You Get a Message
Instructions
1Tap to launch the "Settings" app and select "General."
2
Tap "Accessibility."
3
Tap the "ON/OFF" toggle next to LED Flash for Alerts in the Hearing section so that it displays ON.
4
Press the "Home" button to return to your iPhone's home screen. Your iPhone screen will now flash when you receive text messages.
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