What flash notifications do and which phones have them
Flash notifications make your phone's camera flash or screen brightness pulse when you get a call, text, or app alert. Instead of relying on sound or vibration, your phone uses light to grab your attention — useful in noisy environments, during meetings, or if you have hearing loss.
Flash notifications are built into most Android phones and iPhones running iOS 16 or later. The feature goes by different names depending on your device: Android calls it "Flash Notification" or "LED Flash for Alerts", while iPhones call it "LED Flash for Alerts" or "Flash on Silent". Older iPhones and some Android phones may not have this option at all.
The exact location of this setting varies by manufacturer and operating system version, so the steps below cover the most common paths. If your phone model is different, the setting will be nearby — usually in the Accessibility section of your settings.
Key Takeaways
- Flash notifications use your phone's camera flash or screen brightness to alert you instead of sound or vibration.
- On Android, go to Settings > Accessibility > Hearing > Flash Notification and turn it on.
- On iPhone, go to Settings > Accessibility > Audio/Visual and toggle LED Flash for Alerts on.
- You can usually set flash notifications to work only when your phone is silent or locked, depending on your device.
- Some phones let you control which apps trigger the flash, while others flash for all notifications once the feature is turned on.
How to turn on flash notifications on Android
Open Settings on your Android phone. Scroll down and tap Accessibility — this is where Android groups features designed to make your phone easier to use in different situations.
Look for a section called Hearing or Audio. Tap it, then look for Flash Notification or LED Flash for Alerts. Tap the toggle or switch next to it to turn it on. Your phone will now flash its camera light when you receive calls, texts, or notifications from apps.
Some Android phones also let you choose when the flash triggers. You might see options like "Flash during calls only" or "Flash for all notifications". Choose whichever fits your situation. If you want the flash to work only when your phone is silent, look for a setting that says "Flash when silent" or "Flash on vibrate".
How to turn on flash notifications on iPhone
Open Settings on your iPhone. Tap Accessibility, then scroll down and tap Audio/Visual (on older iOS versions, this section may be called Hearing).
Look for LED Flash for Alerts and toggle it on. Your iPhone will now flash its camera light when you receive calls, texts, or notifications. Unlike Android, iPhones do not usually let you pick which apps trigger the flash — once it is on, the flash responds to all alerts.
If you want the flash to work only when your phone is on silent, toggle on Flash on Silent (if your iPhone offers this option). This prevents the flash from going off during normal use when your phone is making sound.
What happens after you turn flash notifications on
Once flash notifications are enabled, your phone's camera will pulse with light whenever an alert comes in. The flash is usually brief — one or two quick pulses — so it is noticeable without being disruptive. On iPhones, the flash works even when your phone is locked or the screen is off.
If you find the flash too bright or too frequent, you can turn it back off using the same path you used to turn it on. Some people use flash notifications only in specific situations — for example, turning it on during work meetings and off at other times. You can toggle the feature on and off as often as you need.
If your phone has both a camera flash and a screen brightness pulse option, try both to see which one you notice more easily. Some newer phones let you choose which type of flash you prefer.
Troubleshooting flash notifications that do not work
If you turned on flash notifications but your phone is not flashing, check whether your phone is set to silent mode. Some Android phones only flash when the phone is vibrating, not when it is in normal sound mode. Toggle your phone between silent and normal mode to see if that makes a difference.
On iPhone, make sure you toggled on both LED Flash for Alerts and Flash on Silent if you want the flash to work when your phone is quiet. If only one is on, the flash may not trigger in the situation you are in.
If your phone still is not flashing, restart your phone completely — turn it off, wait a few seconds, and turn it back on. This clears temporary glitches that sometimes prevent settings from working. If the problem continues, your phone model may not support flash notifications, or your camera flash may be damaged.
Using flash notifications alongside other alert types
Flash notifications work best when combined with vibration. You can have your phone set to vibrate and flash at the same time, which gives you two ways to notice an alert. This is especially useful in very noisy places where you might miss vibration alone.
You do not have to choose between flash, sound, and vibration — your phone can use all three. Many people turn on flash notifications but leave their phone on normal sound mode so they get audio alerts too. The flash becomes an extra layer of notification rather than a replacement.
If you use Do Not Disturb or Focus modes on your phone, flash notifications usually still work even when those modes are on. This makes flash notifications reliable for catching important alerts during times when you have silenced your phone.
Frequently Asked Questions
Does flash notification drain my battery faster?
No, flash notifications use very little battery power. The camera flash fires for only a fraction of a second, and this happens infrequently enough that it has no measurable impact on battery life. You can leave flash notifications on without worrying about draining your phone.
Can I set flash notifications for only certain apps?
On most Android phones, you can control which apps trigger flash notifications by going into each app's notification settings. On iPhone, the flash triggers for all notifications once it is turned on, and you cannot pick individual apps. If you want to silence specific apps, use your phone's Do Not Disturb or Focus modes instead.
Will flash notifications work if my phone is in my pocket?
No, the flash will not be visible if your phone is in your pocket or bag. Flash notifications work best when your phone is on a table, in your hand, or somewhere the camera can be seen. If you need alerts while your phone is hidden, vibration is a better choice.
What if my phone does not have a camera flash?
Some phones use screen brightness pulses instead of a camera flash for notifications. If your phone does not have a rear camera flash, look in the same Accessibility settings for an option like "Screen Flash" or "Brightness Flash". This pulses your entire screen instead of the camera light.
Can I adjust how bright the flash is?
Most phones do not let you adjust the brightness of the flash itself — it uses your camera's full brightness. However, you can control when the flash triggers by using silent mode or app-specific notification settings, which gives you some control over how often you see it.