User manual

18 Control & customize
• To reboot an unresponsive smartphone, press and
hold both the Power key and the Volume Down key for
about 10 seconds.
Press
Power key
Press and hold the Power key to
choose Power off, Sleep (low power
mode), Airplane mode (no wireless
connections—see “Airplane mode”
on page 60), vibrate , or silent .
To conserve battery power, prevent
accidental touches, or when you
want to wipe smudges off your
touchscreen, put the touchscreen to
sleep by pressing the Power key. To
wake up the touchscreen, just press the Power key again.
Tip: To make the screen lock when it goes to sleep, see
“Protect” on page 60.
Volume keys
Your volume keys help in a few ways:
• Ringer volume: Press the keys in the home screen to
change ring volume. Press them when your
smartphone is ringing to silence it.
• Earpiece volume: Press the keys during a call.
• Music/video volume: Press the keys during a song or
video.
Speak
Just tell your smartphone what you’d like.
Tip: Speak naturally but clearly, like using a
speakerphone.
• Dialing and commands: Ta p Ap ps > Voice
Commands
. To dial, say “Call” and then a contact name
or phone number. Or, say a command like “Send Text,”
“Go to” and app, or “Help” for voice command help.
For more, see “Voice dial” on page 26.
To choose the confirmations and prompts you want to
hear, tap Apps > Voice Commands, then tap
at the top right.