If the battery has not been used for a long time, to begin charging, you may need toconnect the charger, then disconnect and reconnect it.Charge the battery over USBBattery low, but you don't have a charger with you? You can use a compatible USB cableto connect your phone to a compatible device, such as a computer.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.You can use your phone while it's charging.To avoid breaking the charger connector, be careful when connecting or disconnectingthe charger cable.Change the volume of a call, song, or videoUse the volume keys.You can adjust the volume during a call or when an application is active.The built-in loudspeaker allows you to speak and listen from a short distance withouthaving to hold the phone to your ear.Activate or deactivate the loudspeaker during a callSelect or .Get started 11
