- Discovering What's New with the iPhone X
- Getting Ready to use Your New iPhone or iPad
- Charging Up and Getting Ready to go
- Turning Off or Putting to Sleep the iPhone or iPad
- Upgrading from iOS 10 to iOS 11
- Interacting with Your iPhone or iPad
- Using Headphones with the Newest iPhones
- Keeping it Covered
- Understanding Applecare+ Coverage
Turning Off or Putting to Sleep the iPhone or iPad
Your iOS mobile device can be turned on, turned off, placed into Sleep mode, or placed into Airplane mode.
- Turned on—When your phone or tablet is turned on, it can run apps and perform all the tasks it was designed to do. The touchscreen is active, as is its capability to communicate. To turn on the iPhone or iPad when it is powered off, press and hold the Side button for about 5 seconds, until the Apple logo appears on the screen. Release the Side button, and then wait about 15 seconds while the device boots up. When the Lock screen appears, you’re ready to begin using the iPhone or iPad.
- Turned off—When your iPhone or iPad is turned off and powered down, it is not capable of any form of communication, and all apps that were running are shut down. The device is dormant. To turn off your phone or tablet, press and hold the Side button for about 5 seconds, until the Slide to Power Off banner appears on the screen. Swipe your finger along this red-and-white banner from left to right. The device shuts down.
- Sleep mode—To place your iPhone or iPad into Sleep mode, press and release the Side button once. To wake up the device, press the Side button (or the Home button on all devices but the iPhone X). In Sleep mode, your device’s screen is turned off, but the phone or tablet can still connect to the Internet, receive incoming calls (iPhone) or text messages, retrieve emails, and run apps in the background. Notification Center also remains fully operational, so you can be alerted of preset alarms. Sleep mode offers a way to conserve battery life when you’re not actively using your phone or tablet.
- Airplane mode—This mode enables your device to remain fully functional, except it can’t communicate in any way using a cellular (3G/4G/LTE) connection. The iPhone cannot make or receive calls, and neither the iPhone nor iPad can send or receive text/instant messages via a cellular network. Apps that do not require Internet access to function normally. So, if you’re aboard an airplane, you can switch to Airplane mode and continue reading an eBook, playing a game, word processing, watching a movie that you’ve downloaded from the iTunes Store, or working with a wide range of other apps. After switching into Airplane mode, you can turn Wi-Fi Internet access and Bluetooth functionality back on yet keep the cellular connection turned off. This is useful if you’re traveling abroad and don’t want to incur international cellular roaming charges, or if you’re aboard an airplane or a cruise ship that offers Wi-Fi service.
You can also place an iPhone or iPad into Do Not Disturb mode. This mode automatically routes incoming calls directly to voicemail. You can customize the Do Not Disturb feature to allow certain people to reach you when you otherwise want to be left alone.
Turn on/off Airplane Mode, Wi-Fi, or Bluetooth from the redesigned Control Center by tapping on the appropriate icon.
When your iPhone is turned off, all incoming calls are forwarded directly to voicemail, and it is not possible to initiate an outgoing call. Likewise, incoming text messages, FaceTime calls, and other communications from the outside world cannot be accepted when an iPhone or iPad is turned off. Instead, when you later turn on the device, notifications for these missed messages are displayed in the Notification Center, in their respective apps, and potentially on the Lock screen, depending on how you set up Notification Center.

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