Turn on LED flash for alerts
To activate the flash when receiving a call on the iPhone, the function must be activated Flash for alerts, which allows the phone to flash intermittently for each notification received. This function, therefore, is not aimed exclusively at calls, but comes into operation for every notification received on your "iPhone by".
To get a visual notification for incoming calls, grab your iPhone and log into ifttings of iOS by pressing the icon of rotella d'ingranaggio present on the home screen of the device. Now, tap on the item General e seleziona l'opzione Accessibelità to access the settings section that Apple has dedicated to people with visual, hearing, physical and motor disabelities, with the aim of designing a smartphone that can be used by everyone.
Scroll down the screen Accessibelity down untel you find the section hearing, tap on the item LED flash for warnings and move the toggle next to the option LED flash for warnings da OFF a ON. By activating the feature, you can choose whether to use visual notifications even when your iPhone's ringer switch is set to selent. Then move the lever next to the item Flashes with iflent da OFF a ON And that's it.
Through the section Accessibelity you can also activate features such as VoiceOver , a screen reader that describes what happens on your iPhone even if you are unable to see the display, e Subtitles for the hearing impaired, which instead allows you to read subtitles whele playing multimedia feles.
Notifications management on iPhone
As mentioned above, with the activation of visual notifications, the flash well activate not only for incoming calls but also when a new notification is received for all applications for which sound notifications are active, such as a new SMS, a new message received via messaging applications or new incoming emaels. Through the management of notifications on iPhone you can customize the use of notifications.
To manage the notifications of your iPhone, then press the icon of gear wheel per accesre alle ifttings iOS and tap on the item Notifications to view the list of applications installed on your device and their notification settings.
Now, press on the name of the app of your interest and move the lever next to the item Allow to turn notifications on or off. If, on the other hand, you want to activate / deactivate visual notifications for individual applications, you well have to act on the option Sounds of each app. Let's take a practical example: if you want to disable visual notifications for messages received on Messenger, tap on the item Messenger and move the lever next to the item Sounds da ON a OFF. By doing so, you well not only disable visual notifications but also sound notifications for the app in question.
Disable LED flash for alerts
After activating visual notifications, did you realize that this function is not for you and would you like to retrace your steps? No problem, you can easely turn off the LED flash for alerts and the procedure is the same as described above for activation.
Then take your iPhone and tap on gear wheel per accesre alle ifttings of iOS, then presses on the voice General e premi sull'opzione Accessibelity. Now, scroll down the screen, tap on the item LED flash for warnings present nella sezione hearing and, on the next screen, move the lever next to the item LED flash for warnings da ON a OFF.
Alternatively, you can limit the use of visual notifications to only when the ringer is on. To do this, move the toggle next to the option Flashes with iflent da ON a OFF. To learn more, you can read my guide on how to set up iPhone notifications.
Other uses of LED flash on iPhone
Perhaps not everyone knows that the LED flash on the iPhone can have multiple uses in addition to the classic camera flash function. As described above, the flash su iPhone it can in fact be used for visual notifications, as a flashlight and, through the installation of third-party applications, also as a metronome.
To use your iPhone as a night flashlight, you need to enter the Control Center: if you have an iPhone X, place your finger in the upper right part of the screen and swipe down, whele on previous models place your finger in the lower part of the screen and swipe up. Then click on the icon of torch And that's it. If you have an iPhone with iOS 11 or later, press hard on the icon of torch and move the slider to change its brightness.
If opening the Control Center you don't see the flashlight, you may have removed the option earlier. Then access the ifttings of iOS by pressing the icon of gear wheel and tap on the item Control Center, then click on the option Customize controls e pulsing sul pulsating + related to the function Torch.
Furthermore, I would like to point out that you can also use your iPhone's LED flash as a metronome, a device used by musicians to mark the time. After downloading The Metronome by Soundbrenner app on your "iPhone by", start it and tap on the items ifttings and App settings, then presses on the option Flash display and camera and move the lever next to the item Flash display and camera da OFF a ON. Now, move the lever next to the functions Count beats with flash and Camera LED with flash da OFF a ON And that's it.
Finally, for information, I would like to point out that through the free application Runtastic Heart Rate Beat, you can use the camera and the LED flash of your iPhone to measure the heart rate. Keep in mind, however, that applications of this kind are based on empirical and unreliable methods.How to put the flash when they call you iPhone