Using the Home Button
The starting point for most of your iPhone excursions is the Home button, which is the circular button on the face of the phone at the bottom, as shown in Figure 1.1. The Home button has four main functions:
1.1 Press the Home button to (among other things) leave standby mode or to return to the Home screen.
When the iPhone is in standby mode, pressing the Home button wakes the iPhone and displays the unlock screen.
When the iPhone is running, pressing the Home button returns the iPhone to the Home screen (or, if the Home screen is currently displayed, it displays the Search screen).
Pressing and holding the Home button invokes Siri, which enables you to control many iPhone features using voice commands. (If Siri is turned off, pressing and holding the Home button invokes Voice Control, Siri’s predecessor.)
Double-pressing the Home button displays the multitasking bar, which enables you to quickly switch between your running apps.
If your iPhone is in standby ...
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