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Charge the battery
Connect the battery charger
Wait for the onscreen indicator to stop flashing
Disconnect the battery charger once charging is complete
A beep will sound when charging begins. It takes a few seconds before the charging indicator icon starts to flash (charging time may be longer with a new battery, or when the battery level is very low). The mains socket-outlet must be close to the phone and easily accessible.
When you first use your phone you must charge the battery for approximately 3 hours.