to update activation keys if web service message reception is disabled. See “Service message settings,” p. 39.
To view activation keys that are not in use, select Not in use. Unused activation keys have no media files connected to them.
To view detailed information such as the validity status and the ability to send the file, scroll to an activation key, and select it.
17. Battery information
■Charging and discharging
Your device is powered by a rechargeable battery. The battery can be charged and discharged hundreds of times, but it will eventually wear out. When the talk and standby times are noticeably shorter than normal, replace the battery. Use only Nokia approved batteries, and recharge your battery only with Nokia approved chargers designated for this device.
The full performance of a new battery is achieved only after two or three complete charge and discharge cycles.
If a replacement battery is being used for the first time or if the battery has not been used for a prolonged period, it may be necessary to connect the charger, then disconnect and reconnect it to begin charging the battery.
Unplug the charger from the electrical plug and the device when not in use. Do not leave a fully charged battery connected to a charger, since overcharging may shorten its lifetime. If left unused, a fully charged battery will lose its charge over time.
If the battery is completely discharged, it may take several minutes before the charging indicator appears on the display or before any calls can be made.
Use the battery only for its intended purpose. Never use any charger or battery that is damaged.
Do not
Leaving the battery in hot or cold places, such as in a closed car in summer or winter conditions, will reduce the capacity and lifetime of the battery. Always try to keep the battery between 15°C and 25°C (59°F and 77°F). A device with a hot or cold battery may not
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