compartment with the contacts facing up
corresponding to those of the phone. When
done, put the rear cover back into position
as shown in the following illustrations.
Charging the battery: charge the battery
before starting to use the device. Connect
the charger to a mains wall socket, and
then plug the jack into the charging base
(wait for a moment until an audio feedback
notifies the charging start) or put it directly
into the micro USB port on the right side of
ENG-4