* What are the access codes (PIN codes, PUK codes, lock code and restriction code)?

PIN (Personal Identification Number) codes:
    * PIN code protects your SIM card against unauthorized use. It is asked when you insert the SIM card and boot up the device for the first time. It is 4 to 8 digits long and usually supplied with your SIM card. However, it is recommended to change the original PIN code to your own, the instruction on how to change the PIN code is provided in the user guide or Nokia Web site.
    * UPIN code is usually 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 is also 4 to 8 digits long and is supplied with some SIM cards, and is required to access certain services.
    * If you enter any of the above PIN codes incorrectly three consecutive times, you need corresponding
PUK codes to unlock them. Read more about PUK codes below.

PUK (Personal Unblocking Key) codes:

    * PUK code is 8 digits long and is required to change a blocked PIN code.
    * UPUK code is required to change a blocked UPIN code.
    * PUK2 code is required to change a blocked PIN2 code.
    * The PUK codes are also provided by your network operator.

Lock code / Security code:
    * The lock (security) code protects your device from unauthorised use.
    * The default code supplied with the device is 12345. However, it is recommended to change the default code to your own. The instruction on how to change the security code is provided in the user guide or Nokia Web site.
    * Keep the new code in a safe place separate from your device.
    * If you get error notifications after 3 consecutive times security code entries, reboot the device and wait for 15 minutes, then try again. If the problem persists, contact your local Nokia Care Point.

 Restriction code / Restriction password:

    * The restriction code or restriction password may be required when using some network services, such as call restriction service. Note that not all network operators support such service.
    * If your device display "Enter restriction code" when you insert a new SIM card, it means that your device has been locked to use a certain operator's network and it does not accept SIM cards from other operators.
    * Contact your network operator for assistance.

Other PIN codes:
The module PIN is required to access the information in the security module of your SIM card.
The signing PIN may be required for the digital signature.

Important! If you do not know or forget any of these codes, always contact your network operator.

* How do I get the best performance from GPS?
In case you use a device with integrated GPS receiver, please have a look into the manual of your device on the location of the GPS receiver. When using the GPS receiver, hold it upright in your hand at an angle of approximately 45 degrees, with a clear view of the sky. Make sure that your hand does not cover the GPS receiver. The time it takes to establish a GPS connection may vary between a few seconds and several minutes. Establishing a GPS connection in the car may take longer.

We recommend that you make use of Assisted GPS (A-GPS) to speed up the connection time for your GPS. A-GPS uses your mobile internet connection to connect to a Nokia server that tells your device which GPS satellites it will be able to connect to, substantially reducing the time taken to get a GPS fix.

If no satellite signal is found, consider the following:
    * Check that your hand does not cover the GPS receiver.
    * If you are indoors, go outdoors to receive a better signal.
    * If you are outdoors, move to a more open space.
    * If the weather conditions are bad or you are behind UV protected or heated windscreen, the signal strength may also be affected.

Note: The GPS operations take their power from the battery. Using an internal GPS receiver or a Bluetooth connection to an external GPS receiver may drain the battery faster.

* Why should I update my Nokia device software?
Just like a computer, your Nokia phone uses software to run. By making sure you always have the latest version of this software, you get:
    * performance improvements to things like battery life and applications
    * new and improved functions
    * the latest versions of Nokia applications and services
    * bug fixes

Therefore it's recommended to regularly let your device check for updates by activating the so called "software update auto check" as below:

   1. Start the software update application on your phone. For most devices, you will find this application under Menu > Settings > Phone > Phone updates or  Menu > Applications > (Tools >) SW Update. If you don't find the software update application from these menu locations, check the correct location from the user guide.
   2. Select Options > Settings > Auto-Check for updates. With  that in place, your phone will automatically check in specified intervals if there's a new software available and prompt you to start the update.
* Why is my Nokia phone requesting a PIN/PIN2/PUK/PUK2 code?
Your Nokia device requests PIN (Personal Identification Number) and PUK (Personal Unblocking Key) codes to protect your SIM card and device against unauthorized use. Note that all PIN and PUK codes are provided by your network operator. Nokia is not able to provide you PIN or PUK codes.

Note also the following:
    * When your insert your SIM card and boot up your device for the first time, you need to enter the PIN code. For security reasons it is recommended to change it to your own code, instructions on how to change the PIN code in your device is provided in the user guide or Nokia web site. If the PIN code is entered incorrectly multiple times, your device may request a PUK code to futher validate the user's identity and to unlock and change the blocked PIN code.
    * The PIN2 code is a PIN code which acts as a second layer of protection for certain features of your phone.  If the PIN2 code is entered incorrectly multiple times, your phone may request a PUK2 code.

If you do not know or forget any of these codes, always contact your network operator for assistance. If you have already contacted but the code provided does not work, you should obtain a new SIM card.

 * What is the lock code of my Nokia device?
If you forget or lose the lock (security) code, try first the default lock code 12345. If it is not accepted, contact the nearest Nokia Care point to unlock your device.

    * My Nokia phone displays "SIM card rejected" or "SIM card unaccepted".

These messages may be displayed in the following situations:

    * The SIM card is out of alignment. If the phone has recently been dropped, bumped, or opened, the SIM card may need adjusting. Follow the SIM card installation instructions in your user guide.
    * The PUK (Personal Unblocking Key) code is entered incorrectly multiple times. This can inactivate the SIM card. If inactivation appears to be permanent, contact your operator or service provider for a new SIM card.
    * You have recently changed service providers. In this case, either your SIM card or your phone may be configured for your previous operator and may require reconfiguring. It may also be that your phone is configured so that it cannot be used with a SIM card from a different operator or service provider. Please contact your current operator or service provider for assistance.

If none of the situations above apply and you continue to receive this error message, your SIM card may be damaged. Please contact your operator or service provider. Or alternately, contact your local Nokia Care Point for inspection.    * Why does my Nokia phone seem warm when in use?

All Nokia phones are tested for heat tolerance in accordance with industry and government standards. All models meet industry standards before they are offered for sale. Only Nokia models that meet heat tolerance standards are on the market.

Many phones may seem warm to the user, like most battery-powered devices during excessive use. Higher level phones such as 3G phones, or phones operated in many modes at the same time, such as phone, internet and GSM, will seem warm to the user. Warming may also happen during charging or when listening to music for a longer time, for example. Certain phones only used in talk mode may also seem warm to the individual user.

However, the heat level on all Nokia models is within the safe range. The phone does not require repair since it is operating safely in the manner designed to operate.

* How can I contact Nokia Care customer service?
You can find customer service contact information as well as usage tips and troubleshooting information from your local Nokia website's support pages. Customer service is offered directly in web site or via email and/or phone. 

* Why is my Nokia device always low on power?
If your Nokia device appears to have problems retaining power, check the following:

    * Check that you use an original Nokia battery and charger compatible with your Nokia device model. For the originality, visit your local Nokia website's support page and search for Battery Check. For the compatibility, check your device user guide.
    * If you have another battery or charger of the same type, try substituting them to determine if the issue is with the Nokia device, the battery, or the charger.
    * Make sure your device is running the latest software. For downloads and assistance, go to your local Nokia website's support page.
    * Some applications and features, such as Bluetooth and WLAN(WiFi), drain the battery. To conserve power, disable Bluetooth, WLAN and applications when they are not in use.
    * All batteries including high-quality batteries like Nokia's will eventually lose power retention capacity. If it is time to replace your battery with a new one, be sure to purchase an original Nokia battery from an authorized Nokia dealer.

For futher assistance, contact your local Nokia Care point.

* How can I prolong my battery life on my Nokia phone?
Use the following guidelines to increase your battery life time:
    * Turn Bluetooth off when you do not need it.
    * Specify that your Nokia phone does not scan, or scans less often, for available Wireless LAN (WLAN) networks in the backround when you do not need WLAN connections (to turn off scanning, disable Show WLAN availability in Wireless LAN settings).
    * If you have set Packet data connection to When available in connection settings, and there is no packet data coverage (GPRS), your Nokia phone periodically tries to establish a packet data connection. To prolong the operating time of your Nokia phone, 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. Prevent the automatic download of new maps.
    * If the signal strength of the cellular network varies much in your area, your Nokia phone 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 Nokia phone searches for the UMTS network. To use only the GSM network, select Network mode > GSM.
    * The backlight of the display increases the demand on battery power. In the display settings, you can change the time-out after which the backlight is switched off, and adjust the light sensor that observes lighting conditions and adjusts the display brightness.
    * Leaving applications running in the background increases the demand on battery power. Close application you do not use.
    * Turn off vibrate function of your Nokia phone, using just the ring tone.
    * Avoid using moving or animated pictures or videos for your Nokia phone's background.
    * Turn off your Nokia phone whenever you do not plan to answer any calls, for example while you are sleeping.

If the battery loses the power fast even though there is no features consuming the power, the battery may be wearing out and you need to replace it with a new one.