31
phone changes color. In this case, phone repairs are no longer guaranteed by the
manufacturer's warranty, even if the warranty for your phone has not expired.
Emergency Call
You can use your phone for emergency calls. However, connections in call conditions
cannot be guaranteed. You should never rely solely on the phone for essential com-
munications.
Battery
Never use a charger or battery that is damaged in any way.
Use the battery only for its intended purpose.
If you use the phone near the network’s base station, it uses less power. Talk and
standby time are greatly affected by the signal strength on the cellular network and
the parameters set by the network operator.
Battery charging time depends on the remaining battery charge, the type of battery,
and the charger used. The battery can be charged and discharged hundreds of times,
but it will gradually wear out. When the operation time is noticeably shorter than nor-
mal, it is time to buy a new battery.
If left unused, a fully charged battery will discharge itself over time.
Extreme temperatures will affect the charging capacity of your battery: it may require
cooling or warming
fi
rst.
Do not leave the battery in hot or cold places because the capacity and lifetime of the
battery will be reduced. Try to keep the battery at room temperature. A phone with a
