When the iPhone 15 Pro arrives later this year, it’s expected to have buttons that aren’t actually buttons. According to numerous rumors, Apple is turning to capacitive buttons that don’t move when pressed for its next flagship phone–similar to the iPhone 7’s Home button and the trackpad on MacBooks. However, that presents a unique problem–what to do when the battery dies. Since the buttons need a Haptic Engine to operate, they also need power to function. A new report
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