Remove the charger from the power socket
after the device is fully charged. This
prevents unnecessary power consumption.
Another way to charge the battery is by
connecting a USB cable between the device
and a desktop or laptop computer. This may
take a longer time than charging the battery
in the common way.
Do not charge the battery by using a USB
hub that is unable to maintain the rated
voltage. Charging may fail or unintentionally
stop.
Installing the SIM card
Insert the SIM (Subscriber Identity Module)
card provided by your service provider to start
using your device.
To remove the back cover, hold the phone
1
firmly in one hand. With your other hand, lift
off the back cover with your thumbnail as
shown in the figure below.
7