You don't need to charge the battery for a specific length of time, and you can use the phonewhile it's charging.If the battery is completely discharged, it may take up to 20 minutes before the chargingindicator is displayed.Tip: You can use USB charging when a wall outlet is not available. Data can be transferredwhile charging the device. The efficiency of USB charging power varies significantly, andit may take a long time for charging to start and the device to start functioning.Make sure your computer is turned on.First connect the USB cable to the computer, then to your phone. When the battery isfull, first disconnect the USB cable from your phone, then from the computer.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.Change the volumeIf you have trouble hearing your phone ringing in noisy environments, or calls are too loud,you can change the volume to your liking.Use the volume keys on the side of your phone. The maximum volume level is 10.© 2016 Microsoft Mobile. All rights reserved. 14
