Remote Lock; Prolong Battery Life - Nokia N97 User Manual

blocked PIN code or PIN2 code, respectively. If the codes
are not supplied with the SIM card, contact the operator
whose SIM card is in your device.
UPUK code — This code (8 digits) is required to change a
blocked UPIN code. If the code is not supplied with the
USIM card, contact the operator whose USIM card is in your
device.

Remote lock

To prevent unauthorised use of your device, you can lock
your device and memory card remotely using a text
message. You must define the message text, and to lock
your device, send that text message to your device. To
unlock your device, you need the lock code.
To enable remote locking, and to define the text message,
select Menu Settings
>
Security settings Phone and SIM card
>
phone locking > Enabled. Tap the text input field to
enter the text message content (5-20 characters), select
, and verify the message. Enter the lock code.

Prolong battery life

Many features in your device increase the demand on
battery power and reduce the battery life time. To save
battery power, observe the following:
Features that use Bluetooth technology, 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.
and Phone Phone mgmt.
>
Remote
>
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. The WLAN on your Nokia device switches off
when you are not trying to connect, not connected to
another access point, or not scanning for available
networks. To further reduce battery consumption, you
can specify that your device not scan, or scans less
often, for available networks in the background.
If you have set
•
available in connection settings, and there is no
packet data coverage (GPRS), the device periodically
tries to establish a GPRS connection. To prolong the
operating time of your device, select
connection
>
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
Connectivity
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
Packet data connection
Packet data
When needed.
Menu Settings
>
Network Network mode
> >
to When
and
> GSM.
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