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Why is Apple's iOS 16 switch sound effect exclusive to the iPhone 14/Pro series?

  • joy
  • 2022-09-20 11:41:12
  • 223 read
Apple's latest iPhone 14/Pro series of new phones have added a new accessibility feature that allows the new ...

Apple's latest iPhone 14/Pro series of new phones have added a new accessibility feature that allows the new phone to play a sound when it is turned on and off , similar to the Mac's iconic startup sound. It can be turned on or off in the settings of iOS16.

　　However, this switch sound is unique to Apple's iPhone14/Pro series, and other older iPhone models upgraded to iOS16 do not have it . According to foreign media 9To5Mac, this limitation is due to the fact that the switch sound effect is not part of the operating system.

　　When the iPhone displays the Apple logo, the phone is in the boot loader bootrom stage, and the switch sound effect is built into the boot loader and embedded in the A16/A15 bionic firmware, and the boot loader bootrom is read-only and cannot be modified afterwards . Therefore, Apple cannot add this switch sound effect to older iPhones before the iPhone14/Pro series.

　　Apple's iPhone 14/Pro series can manage the power on and off sound effects under "Accessibility" in the "Settings" app. Note that there seems to be a bug in the iOS16.1 beta version, which cannot play the switch sound effect .


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