Ringtone settings
To set a phone ringtone
1From the Home screen, drag 
upward.
2Find and tap Settings > Sound & display > Phone ringtone.
3Select a ringtone.
If the phone is in Silent mode, unmark the Silent mode checkbox before you set the ringtone.
To enable touch tones
1From the Home screen, drag 
upward.
2Find and tap Settings > Sound & display.
3Select the Audible touch tones or Audible selection.
To select a notification ringtone
1From the Home screen, drag 
upward.
2Find and tap Settings > Sound & display > Notification ringtone.
3Select a ringtone and tap OK.
To set the vibrating alert
1From the Home screen, drag 
upward.
2Find and tap Settings > Sound & display.
3Mark the Phone vibrate checkbox.
Screen settings
To adjust the screen brightness
1From the Home screen, drag 
upward.
2Find and tap Settings > Sound & display > Brightness.
3To decrease the screen brightness, drag the slider to the left. To increase the screen brightness, drag the slider to the right.
4Tap OK.
To set the screen to vibrate
1From the Home screen, drag 
upward.
2Find and tap Settings > Sound & display > Haptic feedback. In some applications, the screen vibrates when you tap it.
To adjust the idle time before the screen turns off
1From the Home screen, drag 
upward.
2Find and tap Settings > Sound & display > Screen timeout.
3Select an option.
To turn off the screen quickly, briefly press the power key 
.
To keep the screen on while charging the phone
1From the Home screen, drag 
upward.
2Find and tap Settings > Applications > Development.
3Mark the Stay awake check box.
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