Flash notifications use your iPhone's camera light to alert you silently

Flash notifications make your iPhone's camera light blink when you get a call, text, or app notification. This feature is useful in noisy environments, during meetings, or when you need a visual alert without sound. The setting lives in Accessibility, not in the main Notifications menu, because it was originally designed for people who are deaf or hard of hearing.

The flash alert works with incoming calls, text messages, and any app that sends notifications to your lock screen. When enabled, the LED light on the back of your iPhone (near the camera) will flash in a pattern matching your notification type. You can turn it on in about 30 seconds.

Key Takeaways

  • Flash notifications are found in Settings > Accessibility > Audio/Visual, not in the Notifications section.
  • The feature works on all recent iPhone models and flashes the camera light when you receive calls, texts, or app notifications.
  • You can use flash alerts alongside sound and vibration, or as your only notification method.
  • Flash notifications work even when your iPhone is locked or the screen is off.

Where to find the flash notification setting

Open the Settings app on your home screen. Scroll down and tap Accessibility. This section contains features designed for different ways people interact with their phones.

Inside Accessibility, look for Audio/Visual (on newer iPhones) or LED Flash for Alerts (on older models). The exact name varies slightly depending on your iOS version, but it will be in the Accessibility menu. Tap it to open the flash alert options.

How to turn flash alerts on

Once you are in the Audio/Visual or LED Flash for Alerts section, you will see a toggle switch next to LED Flash for Alerts. Tap the toggle to turn it on. The switch will turn green when active.

That is all you need to do. Your iPhone will now flash its camera light whenever you receive a notification. You do not need to restart your phone or change any other settings. The flash will work immediately for incoming calls, text messages, and notifications from any app that sends alerts to your lock screen.

What happens when flash alerts are on

When a notification arrives, your iPhone's LED light (located next to the camera on the back) will flash in a pattern. The pattern typically repeats several times so you notice it. This happens whether your screen is on or off, and whether your phone is locked or unlocked.

Flash alerts work alongside your other notification settings. If you have sound turned on, you will hear the notification and see the flash. If you have vibration on, you will feel the vibration and see the flash. You can use all three methods together, or turn off sound and vibration and use only the flash.

Combining flash alerts with other notification types

Flash notifications do not replace your sound or vibration settings — they work in addition to them. If you want flash as your only alert method, you need to turn off sound and vibration separately in your notification settings.

To do this, go to Settings > Notifications, then select the app you want to change. Turn off Sounds and Vibration for that app. Leave Allow Notifications turned on so you still receive alerts. Now that app will only alert you with a flash and a lock screen notification.

You can set different apps to use different combinations. For example, you might want calls to use sound and flash, texts to use vibration and flash, and social media apps to use only flash. Each app's notification settings are independent.

Troubleshooting flash alerts that are not working

If you turned on LED Flash for Alerts but your light is not flashing, check that notifications are actually turned on for the app sending the alert. Go to Settings > Notifications and find the app. Make sure Allow Notifications is toggled on.

Also check that your phone is not in Do Not Disturb mode. When Do Not Disturb is active, notifications may be silenced entirely, including flash alerts. You can see Do Not Disturb status in the top-right corner of your screen (a moon icon means it is on). Swipe down from the top-right corner and tap the moon icon to turn it off.

If the light still does not flash, restart your iPhone. Turn off the phone completely, wait 10 seconds, then turn it back on. This often fixes notification issues. If it still does not work after restarting, the LED light itself may be damaged and you may need to contact Apple Support.

Which iPhones support flash notifications

Flash notifications work on iPhone 6s and newer. If you have an older iPhone, the LED Flash for Alerts option will not appear in your Accessibility settings because those phones do not have the necessary hardware.

The feature works the same way on all supported models. iPhone 12 and newer phones have a slightly brighter LED, so the flash may be more noticeable, but the setting and behavior are identical across all compatible devices.

Frequently Asked Questions

Will flash alerts drain my battery faster?

No. The LED light uses very little power and only flashes for a few seconds when a notification arrives. Turning on flash alerts will not noticeably affect your battery life.

Can I make the flash brighter or change the flash pattern?

No. iOS does not offer controls to adjust the brightness or pattern of the flash. The light flashes at a fixed brightness and pattern determined by Apple. You can only turn the feature on or off.

Does flash work if my phone is in a case or pocket?

It depends on the case. A thick case or pocket fabric may block or dim the light enough that you do not see it. If you need the flash to be visible, use a thinner case or keep your phone where the back is exposed.

Can I set flash alerts for only certain apps?

No. The LED Flash for Alerts setting is global — it applies to all notifications on your phone. You cannot turn it on for texts and off for calls. However, you can turn off notifications entirely for specific apps, or turn off their sound and vibration so only the flash alerts you.

What is the difference between flash alerts and the screen flash feature?

Flash alerts use the LED light next to your camera. Some phones also have a screen flash feature that makes your entire display blink. These are separate settings found in different places in Accessibility. You can use one, both, or neither.