Because you can’t always rely on sound to hear your messages.
Smartphones typically have an Accessibility setting that lets you access settings that would make it easier for you to use your device, including text enhancements and other functions that you can turn on.
One particular Accessibility settings are flash alerts. Whenever you get a message or a call, your smartphone’s LED flash will start flashing as an extra notification just in case you didn’t hear your ringtone.
To turn on this feature, see the following steps (or just watch the video above). We’re using an iOS device to show the settings, but Android users should find something similar in the settings menu.
Step 1: Open Settings and select General
Step 2: Select Accessibility
Step 3: Look for the Hearing section
Step 4: Once there turn on LED Flash for Alerts, then select if you want to set flash alerts on both ring or on silent.
And that’s it. Once you get a message you’ll instantly see the LED flashing as it gives you this notification.