2. When the battery is full, disconnect the charger from the phone, then from the wall outlet.You don't need to charge the battery for a specific length of time, and you can use the phone whileit's charging.When you start charging a completely empty battery, the start key flashes until the screen wakesup and the charging progress is shown.If the battery is completely discharged, it may need to charge for up to 20 minutes before you canuse your phone. The charging indicator may not be displayed in this time.Tip: You can use USB charging when a wall outlet is not available. Data can be transferred whilecharging the device. The efficiency of USB charging power varies significantly, and it may takea long time for charging to start and the device to start functioning.Make sure your computer is switched on.© 2014 Nokia. All rights reserved. 10