User Manual

your device does not scan, or scans
less often, for available networks in
the background.
• If you have set Packet data
connection to When available in
connection settings, and there is no
packet data coverage (GPRS), the
device periodically tries to establish
a packet data connection. To
prolong the operating time of your
device, select Menu > Ctrl.
panel > Settings and
Connection > Packet data >
Packet data connection > When
needed.
• If the signal strength of the cellular
network varies much in your area,
your device must scan for the
available network repeatedly. This
increases the demand on battery
power.
• The backlight of the display
increases the demand on battery
power. In the display settings, you
can change the length of the time-
out period after which the backlight
is switched off. Select Menu > Ctrl.
panel > Settings and General >
Personalisation > Display >
Light time-out. To adjust the light
sensor that observes lighting
conditions and adjusts the display
brightness, in the display settings,
select Light sensor.
• To save power, activate the power
save mode. Press the power key,
and select Activate power saving.
To deactivate it, press the power
key, and select Deactivate power
saving. You may not be able to
change the settings of certain
applications when the power save
mode is activated.
Green tips
Save energy
You do not need to charge your battery
so often if you do the following (if
available for your device):
• Close applications and data
connections, for example, your
Bluetooth connection, when not in
use.
• Decrease the brightness of the
screen.
Green tips 37
www.nokia.com/support 37
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