O p e r a t i o n14 Copyright © 2007 Nokia. All rights reserved.3. Operation■ Touch screenTo use the device, tap the screen with your finger.Important: Avoid scratching the touch screen. Never use a penor pencil or other sharp objects to write on the touch screen.■ Adjust the volumeTo adjust the volume, press the volume up or down key to display thevolume bar, and use either key to set the volume.■ Adjust the screen backlightTo adjust the backlight, press the volume up or down key, and quicklytap the sun icon (shown in the top right corner) to activate the nightmode, the moon icon to activate the automatic mode, or the sun andmoon icon with the AUTO text to activate the day mode.The icon that is shown when you press the volume indicates the activemode. For example, the sun icon shows that the day mode is active.If you select the automatic mode, the device automatically adjusts thebacklight using the light sensor.To change the backlight settings, in the application menu screen, tapSetup > Backlight.■ Lock the screen and keysTo prevent accidental operation of the screen and keys, slide the lockswitch at the base of the device toward the padlock icon. A padlock iconis displayed on the screen. To activate the screen and keys, slide theswitch to the opposite direction.