black inline border when clicking on iPhone volume buttons or side button

I've just noticed these black inline borders when I click the volume or side buttons on my iPhone 16 Pro. The same happens to my previous phone an iPhone 14 Pro, which is completely reset. What is the purpose of these lines? Is it an iOS glitch?

iPhone 16 Pro, iOS 18

Posted on Sep 28, 2024 3:30 PM

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Posted on Sep 28, 2024 3:34 PM

Normal, not a glich. It's a visual indicator that you have the button depressed. That's not always easy to be certain of, particularly if the device is in a case.


Regards.

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black inline border when clicking on iPhone volume buttons or side button

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