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Problem Possible Causes Possible Solution
Cannot turn
your phone on
Battery power has been
depleted.
Recharge the phone’s battery.
micro-SIM
card error
The micro-SIM card has
malfunctioned or is damaged.
Take the micro-SIM card to your
service provider for testing.
The micro-SIM card is inserted
improperly.
Insert the micro-SIM card
properly.
Debris is on the micro-SIM card
contacts.
Use a soft, dry cloth to clean the
micro-SIM card contacts.
Unable to
connect to the
network
The micro-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.
Disable this feature. See Barring
Certain Calls.
Cannot make
outgoing calls
You have activated the Call
Barring feature.
Disable this feature. See Barring
Certain Calls.
You have activated the Fixed
Dialing Numbers feature.
Disable this feature. See Using
Fixed Dialing Numbers.
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.
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
conguration. The same phone
used with dierent 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 o 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 o your
phone.
Troubleshooting
Troubleshooting