Nokia 5230 - Manual (Page 14)

your device, or you may receive or request the settings from the network service
providers as a special message.
Access codes
If you forget any of the access codes, contact your service provider.
● Personal identification number (PIN) code — This code protects your SIM card
against unauthorized use. The PIN code (4 to 8 digits) is usually supplied with
the SIM card. After three consecutive incorrect PIN code entries, the code is
blocked, and you need the PUK code to unblock it.
● UPIN code — This code may be supplied with the USIM card. The USIM card is an
enhanced version of the SIM card and is supported by UMTS mobile phones.
● 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) — The lock code helps you to protect
your device against unauthorized use. You can create and change the code, and
set the device to request the code. Keep the new code secret and in a safe place
separate from your device. If you forget the code and your device is locked, your
device will require service and additional charges may apply. For more
information, contact a Nokia Care point or your device dealer.
● 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:
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