JVC J20 User Manual page 17

impacts. Additionally the glass back cover improves
the antenna performance and provides a higher
performance in terms of access to the network. The
back cover of your device shall only be removed
by authorized services. Damages that occur while
opening the device are not included in the warranty
cover. Your device features a system that detects
opening of the back cover. If you open the device
by yourself, the store will detect that the device
had been opened before, even if you have closed it
afterwards. Therefore the warranty of the appliance
shall be void automatically.
Recharging the Battery
We advise you to fully charge the battery before the
first operation of the phone.
As for the back cover of your phone, its battery shall
only be removed or replaced by authorized services,
too. The battery is not removable, and attempting
to remove the battery may cause risks such as
explosion / burning.
The adaptor provided with
the phone feature quick
charging. Thus, chargers
recommended
authorized service shall
be used only. The use
of chargers that are not
approved or recommended
can damage your phone.
WARNING : USB connector may be plugged in either
direction as it is omnidirectional. Connector shall be
installed with little force. Phone may be damaged
when it is forced.
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