Apple MC640LL/A, MC555LL/A Volume Buttons, Lock iPhone, Unlock iPhone, Turn iPhone completely off

By default, if you don’t touch the screen for a minute, iPhone locks automatically.

Sleep/Wake

button

Lock iPhone	Press the Sleep/Wake button.
Unlock iPhone	Press the Home button or the Sleep/Wake
	button, then drag the slider.
Turn iPhone completely off	Press and hold the Sleep/Wake button for a few
	seconds until the red slider appears, then drag
	the slider. When iPhone is off, incoming calls go
	straight to voicemail.
Turn iPhone on	Press and hold the Sleep/Wake button until the
	Apple logo appears.

For information about changing how long before iPhone locks, see “Auto-Lock” on page 145. For information about setting iPhone to require a passcode to unlock it, see “Passcode Lock” on page 145.

Volume Buttons

When you’re on the phone or listening to songs, movies, or other media, the buttons on the side of iPhone adjust the audio volume. Otherwise, the buttons control the volume for the ringer, alerts, and other sound effects.

WARNING: For important information about avoiding hearing loss, see the Important Product Information Guide at www.apple.com/support/manuals/iphone.

To adjust the volume, use the buttons on the side of iPhone.

Volume up

Volume down

To set a volume limit for music and videos on iPhone, see “Music” on page 158.

Chapter 2    Basics

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