18 Control & customize
• Sleeping smartphone, active display: When your 
smartphone is asleep and the active display is working, 
touch  and drag down to  to unlock the screen.
Tip: To change the notifications your sleeping smartphone 
flashes, tap Apps  >
Settings
 >
Active notifications
. 
See “Active Display” on page 12.
To u c h
Find your way around:
•Back: Tap Back  to go to the previous screen.
•Home: Tap Home  to return to the home screen.
• Recent apps: Tap Recent to show your recent apps, 
and tap an app to reopen it. To remove an app from the list, 
flick it left or right. To scroll the list, swipe up or down.
•Menu: When Menu  appears in the corner of the screen, 
you can tap it to open options for the current screen.
Lost or stuck? If you’re not sure what to do next, try one of 
these:
• To   open a text message, show contact details, or open items 
in a list, tap the message, contact, or item.
• To   show options for a list item (if available), touch and hold 
the item.
• To   show a menu for the current screen, tap Menu  in the 
corner of the screen (if available).
• To   return home to the home screen, tap Home .
• To   go back just one screen, tap Back .
• To   close a touchscreen keyboard, tap Back .
• To   reopen an app you closed, tap Recent  and tap the 
app in the list.
• To   reboot an unresponsive smartphone, press and hold 
both the Power and the Volume Up keys for about 
15 seconds.
Press
Power key
Press and hold the Power key 
to choose 
Power off
, 
Airplane 
mode
 (no wireless 
connections—see “Airplane 
mode” on page 57), silent , 
vibrate , or sound on .
Put the touchscreen to sleep 
by pressing the Power key. To 
wake up the touchscreen, just 
press the Power key again.
Tip: To add more security to 
your smartphone, see “Protect” on page 58.