iPhone User Guide
- Welcome
- What’s new in iOS 12
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- Wake and unlock
- Learn basic gestures
- Learn gestures for iPhone X and later
- Use 3D Touch for previews and shortcuts
- Explore the Home screen and apps
- Change the settings
- Take a screenshot
- Adjust the volume
- Change the sounds and vibrations
- Search for content
- Use and customize Control Center
- View and organize Today View
- Access features from the Lock screen
- Travel with iPhone
- Set screen time, allowances, and limits
- Sync iPhone using iTunes
- Charge and monitor the battery
- Learn the meaning of the status icons
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- Accessories included with iPhone
- Connect Bluetooth devices
- Stream audio and video to other devices
- Control audio on multiple devices
- AirPrint
- Use Apple EarPods
- Apple Watch
- Use Magic Keyboard
- Wireless charging
- Handoff
- Use Universal Clipboard
- Make and receive Wi-Fi calls
- Use iPhone as a Wi-Fi hotspot
- Share your iPhone Internet connection
- Transfer files with iTunes
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- Get started with accessibility features
- Accessibility shortcuts
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- Turn on and practice VoiceOver
- Change your VoiceOver settings
- Learn VoiceOver gestures
- Operate iPhone using VoiceOver gestures
- Control VoiceOver using the rotor
- Use the onscreen keyboard
- Write with your finger
- Control VoiceOver with Magic Keyboard
- Type onscreen braille using VoiceOver
- Use a braille display
- Use VoiceOver in apps
- Speak selection, speak screen, typing feedback
- Zoom in on the screen
- Magnifier
- Display settings
- Face ID and attention
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- Guided Access
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- Important safety information
- Important handling information
- Get information about your iPhone
- View or change cellular settings
- Learn more about iPhone software and service
- FCC compliance statement
- ISED Canada compliance statement
- Class 1 Laser information
- Apple and the environment
- Disposal and recycling information
- Copyright
Change access to items when iPhone is locked
By default, some commonly used features (such as Today View and Control Center) are available when iPhone is locked. (For security, USB connections aren’t allowed when iPhone is locked.) You can change whether any of these items can be accessed from the Lock screen.
Go to Settings 
> Face ID & Passcode (iPhone X and later) or Touch ID & Passcode (other models). Then select your options.
You can turn access on or off to the following features while iPhone is locked:
Today View (see View and organize Today View on iPhone)
Recent notifications (see View and respond to notifications on iPhone)
Control Center (see Use and customize Control Center on iPhone)
Siri (see Ask Siri on iPhone)
Replying to messages (see Send and receive text messages on iPhone)
Home Control (see A look at Home on iPhone)
Wallet (see Add and manage passes in Wallet on iPhone)
Returning missed calls (see Manage incoming calls on iPhone)
Connecting to a Mac, a PC, or an accessory with USB (such as when you connect iPhone to your computer using USB)