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Problem Possible causes Possible solution
Battery not
charging
The battery or battery charger is
damaged.
Contact the dealer.
The phone’s temperature is below 0°C
or higher than 45°C.
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 standby time is related to your
service provider system conguration.
The same phone used with different
service providers’ systems will not
provide exactly the same length of
standby time.
If you are located in an area
where signaling is weak,
temporarily power off the phone.
The battery is depleted. In high
temperature environments, battery life
will be shortened.
Use a new battery.
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 power
your phone on
Battery power has been depleted. Recharge the phone’s battery.
SIM card error The SIM card has malfunctioned or is
damaged.
Take the SIM card to your service
provider for testing.
SIM card inserted improperly. Insert the SIM card properly.
Debris on the SIM card contacts. Use a soft, dry cloth to clean the
SIM card contacts.
Problem Possible causes Possible solution
Unable to
connect to the
network
The 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 answer
incoming calls
You have activated the Call Barring
feature.
Go to > Menu key > Settings
> Call Barring Settings, and
then select Deactivate All.
Cannot make
outgoing calls
You have activated the Call Barring
feature.
Go to > Menu key > Settings
> Call Barring Settings, and
then select Deactivate All.
You have activated Fixed Dialing
Numbers.
Go to > Menu key > Settings
> 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.
Reset the phone to factory
status.
Enter safety mode and uninstall
the software that may cause the
problem.
Upgrade the phone software.
TROUBLESHOOTING
TROUBLESHOOTING
57


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