Nokia E5–00 User Manual page 185

device periodically tries to establish
a packet data connection. To
prolong the operating time of your
device, select
panel Settings
>
Connection
Packet data connection
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
panel Settings
>
Network
>
GSM.
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Menu Ctrl.
>
and
Packet data
>
When
>
Menu
>
and Phone
Network mode
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
>
panel
Personalisation
Light
sensor that observes lighting
conditions and adjusts the display
brightness, in the display settings,
select
Leaving applications running in the
•
background increases the demand
on battery power. To close the
applications you are not using,
press and hold the menu key, scroll
to the application, and press the
backspace key.
To save power, activate the power
•
save mode. Press the power key,
and select
To deactivate it, press the power
key, and select
saving. You may not be able to
Ctrl.
change the settings of certain
applications when the power save
>
mode is activated.
>
Find help 185
Menu
Settings and
>
Display
>
time-out. To adjust the light
Light sensor.
Activate power
Deactivate power
Ctrl.
>
General
>
>
saving.