Use only approved batteries and chargers. Disconnect the charger from the power
source when it is not in use. Do not leave the battery connected to a charger for
more than a week, since overcharging may shorten its life. Please remove the
battery only after the phone is switched off normally, otherwise it could cause
unpredictable damage for the phone.
Only qualified personnel should service the phone. Faulty service may be
dangerous and may invalidate any warranty applicable to the device.
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