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● PIN2 code — This code (4 to 8 digits) is supplied with
some SIM cards, and is required to access some
functions in your device.
● Lock code (also known as security code) — This code
(5 digits) can be used to lock the device to avoid
unauthorised use. The factory setting for the lock code
is 12345. To avoid unauthorised use of your device,
change the lock code. Keep the new code secret and in
a safe place separate from your device. Try entering the
code only once, if you forget the code. If the code you
entered is not correct, contact a Nokia Care point or
your service provider for further instructions.
● Personal unblocking key (PUK) code and PUK2
code — These codes (8 digits) are required to change
a 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.
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 technology, or allowing
such features to run in the background while using
other features, increase the demand on battery power.
Turn Bluetooth technology off 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 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.
See "Wireless
LAN", p. 93. When Scan for networks is set to
Never, the WLAN availability icon is not shown in the
standby mode. However, you can still manually scan
for available WLAN networks and connect to WLAN
networks as usual.
● 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
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