The Blinding Flashlight
Buried deep within the iOS accessibility settings is a feature called “LED Flash for Alerts.” When enabled, your iPhone will utilize the incredibly bright camera flash on the back of the device to visually signal an incoming phone call or a new text message. While this is an essential, life-changing feature for users who are deaf or hard of hearing, it is highly disruptive if you accidentally enable it or inherit a phone with it turned on. Having a blinding strobe light detonate in a dark movie theater or a quiet conference room every time you receive an email is socially unacceptable. You must explicitly disable this hardware trigger.
How to Turn Off the LED Flash
You can disconnect the camera hardware from the notification system via the Accessibility menu.
- Open the Settings app on your iPhone.
- Scroll down and tap on Accessibility.
- Scroll down to the “Hearing” section and tap on Audio/Visual.
- Scroll all the way down to the very bottom of the page.
- Look for the master toggle switch labeled LED Flash for Alerts.
- Toggle this switch to the Off position (the green background will disappear).
A Normal Notification
The change is absolute and instantaneous. Your iPhone will immediately stop attempting to use the camera hardware to signal you. Future text messages and phone calls will rely entirely on the standard speaker chimes, screen waking, and the internal vibration motor, ensuring your notifications remain discreet and private.