Charge the battery
Your battery has been precharged, but the charging levels may vary.
1. Connect the charger to a wall outlet.
2. Connect the charger to the device. You can use your device while it is
charging.
3. When the battery is fully charged, disconnect the charger from the
device, then from the wall outlet.
If the battery is completely discharged, it may take several minutes before
the charging indicator appears on the display or before any calls can be made.