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• Features that use Bluetooth technology, or allowing such
features to run in the background while using other
features, increase the demand on battery power.
Deactivate Bluetooth technology when you do not need
it.
• Features that use wireless LAN (WLAN), or allowing such
features to run in the background while using other
features, increase the demand on battery power. WLAN
on your Nokia device deactivates 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 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 Packet data
connection > When needed.
• The Maps application downloads new map information
when you scroll to new areas on the map, which
increases the demand on battery power. You can prevent
the automatic download of new maps.
• 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.
If the network mode is set to dual mode in the network
settings, the device searches for the 3G network. You can
set the device to use only the GSM network. To use only
the GSM network, select Menu > Settings and
Connectivity > Network > Network mode > GSM.
• 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 > Settings and
Phone > 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.
• Leaving applications running in the background
increases the demand on battery power. To close the
applications you are not using, if they are not responding,
select Options > Show open apps., and go to the
application using the menu key. Press and hold the menu
key to open the application, and select Options > Exit
.
Free memory
To view how much space is available for different data types,
select Menu > Applications > Office > File mgr..
Many features of the device use memory to store data. The
device notifies you if the memory in different memory
locations is low.
To free memory, transfer data to a compatible memory card
(if available) or to a compatible computer.
To remove data you no longer need, use File manager or open
the respective application. You can remove the following:
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