Clear the settings or reset the headset
To clear the settings, press and hold the power key and the answer/end key over 10 seconds.
Battery information
To reset the headset if it does not function properly, although it is charged, plug the headset into a charger, and briefly press the power key and the answer/end key at the same time.
English
Your headset is powered by a rechargeable battery. The battery can be charged and discharged hundreds of times, but it will eventually wear out. Recharge your battery only with Nokia approved chargers designated for this headset.
Unplug the charger from the electrical plug and the headset 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.
Never use any charger that is damaged.
Leaving the headset 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 headset with a hot or cold battery may not work temporarily, even when the battery is fully charged. Battery performance is particularly limited in temperatures well below freezing.