LED Flash for Alerts

Did you know that on most devices there is a feature hidden within the accessibility settings that can either flash the camera torch or briefly flash the screen whenever you receive a notification?

The notification could be anything: a text from a friend, an incoming phone call, an email, a social media message or even a game update. The type of notification doesn’t matter.

You didn’t?

Well, you’re in the right place to find out more. Let’s take a closer look.

What Are LED Flash Alerts?

LED flash alerts are an accessibility feature designed to provide a visual notification when your device receives an alert. Instead of relying solely on sound or vibration, your device uses either the camera flash, the screen, or both to get your attention.

For many people, this feature is simply a useful alternative notification method. However, for Deaf, hard of hearing and Deafblind users, it can be an incredibly valuable accessibility tool.

Why Is This Feature Beneficial?

Being Deafblind, it can sometimes be difficult to hear notification sounds. While features such as vibration can help, they are not always reliable. If your phone is sitting on a table, tucked inside a bag or charging on the other side of the room, it’s easy to miss the vibration completely.

This is where flash alerts can be a game changer.

Even with restricted vision, I can still detect changes in light around me. The phone’s torch might be facing a wall, but I can often still notice the room briefly light up. That visual cue is enough to let me know something has happened.

Flash alerts can also be useful in noisy environments where notification sounds may be drowned out. Equally, they can help when your phone is set to silent mode but you still want an obvious way to know when a notification arrives.

What About Computers and Laptops?

Things work slightly differently on computers and laptops.

Windows includes a feature that can flash parts of the screen when certain notifications occur. Depending on your settings and the application being used, this can provide a useful visual indication that something needs your attention.

In my own testing (also known as regular everyday use!), I’ve found that results can vary between applications. Some notifications work consistently, while others do not always trigger a visual alert.

For example, I’ve found email notifications to be fairly reliable. Microsoft Teams notifications can be more inconsistent depending on how the application is configured. One situation that almost always gets my attention, however, is when an external device is connected or disconnected from the computer.

While desktop flash notifications may not be as noticeable as a bright phone torch flashing across a room, they can still provide an additional layer of accessibility and reduce the chances of missing important alerts.

Things to Consider

Like any accessibility feature, flash alerts are not perfect.

If your phone is face down on a soft surface, covered by a blanket or hidden inside a bag, the flash may be less noticeable. Similarly, bright daylight can make the flashes harder to see.

Some people may also find frequent flashing distracting, particularly if they receive a large number of notifications throughout the day.

The good news is that most devices allow you to customise the feature, enabling it only when the device is unlocked, only when silent mode is active, or only for specific types of notifications.

For many users, it works best when combined with other accessibility features such as vibration, hearing devices, smartwatches or visual notification systems.

How to Enable LED Flash Alerts

iPhone and iPad

  • Open Settings.
  • Select Accessibility.
  • Tap Audio & Visual.
  • Scroll down and select LED Flash for Alerts.
  • Turn LED Flash for Alerts on.
Optionally enable:
  • Flash While Unlocked
  • Flash in Silent Mode

Your device will now use the camera flash when notifications arrive.

Android

The exact steps vary slightly depending on the manufacturer, but the process is usually similar.
  • Open Settings.
  • Select Accessibility.

Look for Flash Notifications, Flash Alerts or a similar option.
Choose whether you want:
  • Camera flash notifications
  • Screen flash notifications
  • Both
Enable your preferred options.
Samsung devices also allow you to choose different screen flash colours.

Windows 11

  • Open Settings.
  • Select Accessibility.
  • Choose Audio.
  • Locate Flash my screen during audio notifications.
Select your preferred option from the drop-down menu. Available options may include flashing the active window, the title bar or the entire screen.

Final Thoughts

LED flash alerts are one of those accessibility features that many people never discover until they need them. They are simple to enable, built into most modern devices and can make a surprising difference when it comes to noticing important notifications.

Whether you’re Deaf, hard of hearing, Deafblind or simply looking for an extra way to avoid missing calls and messages, it’s a feature well worth exploring.

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