To make your iPhone flash for notifications, open Settings > Accessibility > Audio & Visual > Flash for Alerts, turn on Flash for Alerts, then select LED Flash. You can also choose whether it flashes in Silent mode or while the phone is unlocked, if those controls appear on your iPhone.
Turn on LED flash alerts
- Open Settings.
- Tap Accessibility, then Audio & Visual.
- Tap Flash for Alerts and turn it on.
- Select LED Flash to use the light beside the rear camera. Choose Screen or Both instead if you want the screen to flash, too.
- If the options are available, set Flash in Silent Mode and Flash While Unlocked to match your preferences.
Apple’s dedicated support instructions use slightly different labels and give the path as Settings > Accessibility > Audio/Visual > LED Flash for Alerts. Menu wording and available controls can vary by iOS version, so follow the closest matching options shown on your device. Apple Support’s LED flash alert instructions and the iPhone user guide document these paths.
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Choose what flashes and when
LED Flash, Screen, or Both
LED Flash uses the rear indicator next to the camera. Screen uses the display, while Both uses the LED and screen together. These are options on the Flash for Alerts screen in Apple’s current iPhone guide.
Flash alerts in Silent mode
Turn on Flash in Silent Mode if you want the visual alert when the phone is silent. Apple’s support page calls the corresponding control Flash on Silent; it says to turn that setting off to prevent LED flashes in Silent mode. If you do not see either label, your iOS version may expose different options.
#1 Best Overall
- This phone is unlocked and compatible with any carrier of choice on GSM and CDMA networks (e.g. AT&T, T-Mobile, Sprint, Verizon, US Cellular, Cricket, Metro, Tracfone, Mint Mobile, etc.).
- Please check with your carrier to verify compatibility.
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Flash while the iPhone is unlocked
The current user guide lists Flash While Unlocked as a control. Apple’s dedicated support article, by contrast, says LED Flash for Alerts works only while the device is locked. Because Apple’s documentation differs on this point, use the unlocked setting if it appears in your iPhone’s options rather than assuming the behavior is identical across versions.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What to expect from the alert
Apple describes the feature as a visual alert for people who may miss audible notifications. It is a built-in Accessibility setting; normal setup does not require an app, accessory, or replacement part. A flash is not a guarantee that every notification will trigger an alert. Apple’s hearing accessibility overview includes visual alerts among its hearing accessibility features.
Quick Recap
Best Value
- 6.1" Super Retina XDR OLED, HDR10, 800 nits (HBM), 1200 nits (peak), 2532x1170px at 460ppi, 4005mAh Battery
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- Rear camera: 48MP, f/1.6, wide + 12MP, f/2.2, ultrawide, Front Camera: 12MP, f/1.9, wide, iOS 18, upgradable to iOS 18.5
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- Unlocked for freedom to choose your carrier. Compatible with both GSM & CDMA networks. The phone is unlocked to work with all GSM Carriers & CDMA Carriers Including AT&T, T-Mobile, Verizon, Sprint., Etc.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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