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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 32°F
(0°C) or higher than 113°F (45°C).
Adjust the battery-charging 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 configuration. 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 turn your
phone on
Battery power has been depleted. Recharge the phone’s battery.
(Micro) SIM card
error
(Micro) SIM card malfunction or damage.
Take the (Micro) SIM card to your service
provider for testing.
(Micro) SIM card inserted improperly. Insert the (Micro) SIM card properly.
Debris on the (Micro) SIM card contacts.
Use a soft, dry cloth to clean the (Micro)
SIM card contacts.
Problem Possible Causes Possible Solution
Unable to connect
to the network
(Micro) SIM card 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.
In Phone app, go to the Menu Key >
Settings > Call Barring Settings, and
then check Deactive All.
You cannot make
outgoing calls.
You have activated the Call barring
feature.
In Phone app, go to the Menu Key >
Settings > Call Barring Settings, and
then check Deactive All.
You have activated the Fixed dial
numbers feature.
In Phone app, go to the 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 (Micro) SIM card’s
PUK code, use the PUK code to unlock the
(Micro) 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, freeze,
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