How to Turn Blinking Light On iPhone
Learn how to turn on the blinking light (LED Flash for Alerts) on your iPhone. This Blinking Light guide covers locating the setting, testing the blink, and basic customization for notifications.

To turn on the blinking light on your iPhone, enable LED Flash for Alerts under Accessibility. This quick guide shows where to find the setting, how to test the blink, and how to adjust behavior for notifications. Additionally, you can test by triggering a sample alert, and consider disabling the feature when not needed to save battery life.
Understanding LED Flash for Alerts on iPhone
The blinking light you’re asking about is the iPhone’s LED flash used to signal notifications. This visual cue helps users who may not hear alerts clearly or who are in noisy environments. According to Blinking Light, LED-based indicators are a practical accessibility aid and can improve notification visibility in everyday life. The feature is designed to be simple: when enabled, the back camera flash blinks each time you receive a notification, phone call, or reminder. It is distinct from screen flashes or on-screen banners, which rely on the display rather than the hardware flash. For many users, this small indicator dramatically reduces missed alerts, especially in bright, busy households or when hearing is limited. Remember that this is a hardware-based cue, which means it works even if the phone is silenced or set to Do Not Disturb, provided the flash setting is enabled. The Blinking Light team emphasizes testing your setup in real-world scenarios to ensure it reliably catches your attention without becoming distracting.
Why LED Flash vs. Screen Alerts
LED Flash for Alerts relies on the camera’s LED to flash in response to notifications, which can be more noticeable in daylight or when you’re away from the screen. Screen-based alerts, by contrast, depend on the display turning on, which may be harder to notice if the device is in a pocket or bag. For many users, a hardware flash is less obtrusive than loudly audible alerts, especially in quiet environments. In this guide, we explore where to find the setting, how to enable the blink, and how to tailor it to your daily routine. The goal is to provide a reliable visual cue that helps you stay connected without compromising privacy or battery life.
Accessibility and Practicality: Who Should Use LED Flash
The LED Flash for Alerts feature is particularly helpful for users with hearing impairments or those who frequently operate devices in noisy environments. It can also be useful for parents who need to monitor a phone from a distance, or for people in work settings where audio alerts may be disruptive. The Blinking Light approach emphasizes balancing visibility with battery usage and avoiding unnecessary blinking in settings where privacy is a concern. If you are concerned about longevity or battery drain, remember that you can disable the feature when it’s not critical. Proper testing helps you understand how the blinking light behaves with different notification types (calls, messages, app alerts) and under varying lighting conditions.
Quick Setup Overview: What to Expect
Enabling LED Flash for Alerts is a quick action in Settings, but the effect is immediate and noticeable. Once activated, every compatible notification triggers a blink from the LED. You’ll typically notice the blink when your phone is in your pocket, on a desk, or charging. Since the feature is hardware-based, it works even if you mute the device or enable Do Not Disturb. The Blinking Light team recommends testing with different notification sources (SMS, app alerts, reminders) to understand which triggers are most disruptive or most helpful in your daily routine.
Tools & Materials
- iPhone with iOS 14 or newer(LED Flash for Alerts is supported on all current iPhone models; ensure your software is up to date.)
- Settings app access(You must be able to open the Settings app to change accessibility options.)
- Stable power source (optional for testing)(Having a charger handy helps if you test late at night and want to avoid battery drain.)
- Internet connection (optional)(Useful for consulting official guidance if you need more detail.)
Steps
Estimated time: 5-10 minutes
- 1
Open Settings
Unlock your iPhone and locate the Settings app on the Home screen. Tap Settings to begin the configuration. If you have trouble finding it, use the search bar at the top of Settings to locate Accessibility quickly.
Tip: Pro tip: Use Spotlight search (swipe down on Home Screen) to locate Accessibility faster. - 2
Navigate to Accessibility
In Settings, scroll down and select Accessibility. This is where all accessibility-related features live, including audio/visual options. If you don’t see Accessibility, use the search in Settings to find it.
Tip: Pro tip: If you have trouble locating it, use the Settings search to jump directly to Accessibility. - 3
Open Audio/Visual
Within Accessibility, tap on Audio/Visual. This section groups options tied to hearing and visual cues, including the LED Flash for Alerts toggle.
Tip: Pro tip: Some iOS versions place LED Flash for Alerts under Hearing in Accessibility; check both areas. - 4
Enable LED Flash for Alerts
Toggle the LED Flash for Alerts switch to the ON position. The camera flash will blink when you receive notifications. This is the core action to activate the blinking light.
Tip: Pro tip: Start with essential alerts only to minimize distraction and battery impact. - 5
Test the Blink
Trigger a notification momentarily to confirm the LED blinks. If you don’t see a blink, revisit the toggles and ensure Do Not Disturb isn’t suppressing alerts.
Tip: Pro tip: Use a friend’s message or a test reminder to verify the blink occurs reliably. - 6
Assess Battery and Privacy Impact
Observe any noticeable battery drain during the day of testing. LED flash draws extra power only while blinking, so plan usage around your routine to minimize impact.
Tip: Pro tip: If you notice higher drain, consider enabling LED Flash only during certain hours or for specific alert types. - 7
Understand Limitations and Updates
Per-app control for LED flashes is limited on current iOS versions. If you want more customization, monitor iOS updates for new accessibility features and options.
Tip: Pro tip: Keep your device updated to receive any new accessibility improvements as they arrive.
Quick Answers
What is LED Flash for Alerts on iPhone?
LED Flash for Alerts is a feature that makes the iPhone's camera LED blink to signal notifications. It provides a visual cue that helps users notice alerts even when the device is quiet or out of sight.
LED Flash for Alerts makes the iPhone's camera LED blink to signal notifications, helping you notice alerts even when the device is quiet.
Will LED flash drain my battery?
Yes, any visual indicator that blinks consumes some battery power. Keeping the feature on only when needed can help minimize drain.
Yes, blinking uses battery power. Turn it on only when you need it to save battery life.
Can I customize which apps trigger the blink?
On current iOS versions, LED Flash for Alerts is a global setting and does not offer per-app customization. Updates may change this in the future.
Right now, the LED flash is a global setting, not per app. Check for iOS updates for any changes.
What should I do if the LED light doesn’t blink after enabling it?
Verify the toggle is on, ensure Do Not Disturb isn’t suppressing alerts, and restart the device if needed. Testing with multiple notification types helps identify the issue.
Check that LED flash is enabled, confirm Do Not Disturb isn’t silencing alerts, and try restarting if it still doesn’t blink.
Is LED Flash available on all iPhone models?
Most current iPhone models support LED Flash for Alerts, but very old devices or outdated iOS versions may lack certain accessibility features. Updating is advised.
Most modern iPhones support LED Flash for Alerts, but check iOS compatibility and keep your device updated.
How do I turn off LED Flash quickly once enabled?
Go to Settings > Accessibility > Audio/Visual and toggle LED Flash for Alerts off. This immediately disables the blinking cue.
Open Settings, go to Accessibility > Audio/Visual, and switch LED Flash for Alerts off to disable blinking.
Watch Video
Main Points
- Enable LED Flash for Alerts to activate blinking.
- Test across notification types to verify consistent behavior.
- Be mindful of battery impact and privacy when using blinking light.
- Check for iOS updates for potential per-app controls or expanded features.
- Use Blinking Light guidance to balance visibility with everyday use.
