User's Manual

Table Of Contents
92 93
Problem Possible causes Possible solution
Battery not
charging
The battery or battery charger is
damaged.
Contact the dealer.
The phone’s temperature is below
32°F or higher than 104°F.
Adjust the environment to avoid
extremes of temperature.
Poor contact between the battery
and charger.
Check all connectors to make
sure all connections have been
properly made.
Shortened
standby time
The display brightness is high or Wi-Fi,
Bluetooth, GPS, etc is not disabled
when they are not in use.
Adjust the brightness of screen as
appropriate.
Exit background-running
applications if they are not being
used for a long time.
Disable Bluetooth, Wi-Fi, or GPS
when not in use.
If you are not able to connect to
the network, the phone will continue
to send out signals as it attempts
to locate a base station. Doing so
consumes battery power and will
consequently shorten standby time.
Change your location to one
where the network is accessible, or
temporarily turn off your phone.
Cannot turn
your phone on
Battery power has been depleted. Recharge the phone’s battery.
nano-SIM card
error
The nano-SIM card has
malfunctioned or is damaged.
Take the nano-SIM card to your
service provider for testing.
The nano-SIM card is inserted
improperly.
Insert the nano-SIM card properly.
There is debris on the nano-SIM card
contacts.
Use a soft, dry cloth to clean the
nano-SIM card contacts.
Problem Possible causes Possible solution
Unable to
connect to the
network
The nano-SIM card is invalid. Contact your service provider.
You are not within the network’s
service area.
Check the service area with your
service provider.
Poor signal. Move to an open space, or if you
are inside a building, move closer
to a window.
Cannot make
outgoing calls
You have activated Fixed Dialing
Numbers.
Go to Fixed Dialing Numbers and
disable it.
PIN code
blocked
You have entered an incorrect PIN
code three consecutive times.
Contact your service provider. If
the service provider provides the
SIM card’s PUK code, use the PUK
code to unlock the SIM card.
Unable to enter
information into
the phonebook
The phonebook’s memory is already
full.
Delete unnecessary data from the
contacts.
Phone crashes,
reboots, freezes,
or cannot be
powered on
Some third-party software is not
compatible with your phone.
Uninstall the software that may
cause the problem.
Upgrade the phone software.
Reset the phone to factory status.
Phone is slow or
sluggish
Applications are running in the
background.
Exit background-running
applications if they are not being
used.