are not supplied with the SIM card, contact the operator whose SIM card is in
your device.
Prolong battery life
Many features in your device increase the demand on battery power and reduce the
battery life time. To save battery power, note the following:
●
Features that use Bluetooth coonectivity, or allowing such features to run in the
background while using other features, increase the demand on battery power.
Switch off Bluetooth when you do not need it.
●
Features that use a wireless LAN (WLAN), or allowing such features to run in the
background while using other features, increase the demand on battery power.
The WLAN on your Nokia device switches off when you are not trying to connect,
not connected to an access point, or not scanning for available networks. To
further reduce battery consumption, you can specify that your device does not
scan, or scans less often, for available networks in the background.
●
If you have selected
Packet data connection
>
When available
in the
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
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 adjust the display brightness and change the time-out
period after which the backlight is switched off. Select
Menu
>
Settings
and
Phone
>
Display
>
Brightness
or
Light time-out
.
●
Leaving applications running in the background increases the demand on battery
power. To close the applications you do not use, press and hold the menu key,
select
Options
>
Show open apps.
, and navigate to the application with the
menu key. Press and hold the menu key, and select
Exit
.
© 2009 Nokia. All rights reserved.
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