Have you ever heard a sound when your iPhone shuts down, boots up, or restarts? Probably not, but it shouldn’t stay that way.
Many computers and Android devices support power-related sounds and have for some time, but it’s something Apple has always left out of iOS — until now. Hidden deep within your iPhone’s settings is an option that will make your iPhone ring every time you turn off or turn off your iPhone.
If priority is enabled, you will hear the call every time at the same volume level, regardless of the volume level of your device. Your iPhone can even be on silent mode, and you can still hear the power-off and power-on ring.
The only problem is that it’s only for iPhone 14 series models running iOS 16.0 or later. So if you have an iPhone 14, iPhone 14 Plus, iPhone 14 Pro, or iPhone 14 Pro Max, you can enable shutdown and boot sounds.
It is very useful for blind and visually impaired users as it is impossible to tell when the iPhone is turned off or on without it. And it’s just as valuable to everyone, so you no longer have to stare at your iPhone and wait for the Apple logo to appear. Plus, it just sounds cool.
The setting is hidden in your accessibility settings, but it’s easy to activate. Just go to Settings -> Accessibility -> Audio/Visual, then toggle the “Turn sounds on and off” switch.
Then, whether you manually turn iPhone off and on or restart it, you’ll hear a device shutdown sound and a boot chime. If you ever need to force restart your iPhone, you won’t hear the shutdown sound, but you will hear the boot chime.
The shutdown sound file, DeviceShutdown.caf, is hidden in the “UISounds” folder in the iOS software. The boot audio file, d27-boot-chime.im4p, d28-boot-chime.im4p, d73-boot-chime.im4p, or d74-boot-chime.im4p, depending on your iPhone 14 model, is hidden in the “embeddedaudioresources” firmware folder.
Unlike Mac computers, iPhones don’t have different startup bells that indicate different things when you turn on your device. Apple uses different calls on Macs to distinguish between successful boot-ups and start with hardware or software problems.
Cool fact: there was a device shutdown audio leaked on the day of the iPhone 14 announcement, and it was found via the same folder mentioned above as iOS 16 Release Candidate for non-14 model devices. Given that this is an accessibility feature for blind and low-vision users, it’s possible that we’ll get sounds on other iPhone models in a future software update, especially since one of the sounds was found before the release of the iPhone 14 series models. However, as of iOS 16.3, it is still an iPhone 14 exclusive.
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