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the battery.
SIM card error The SIM card is
damaged.
Contact your network
service provider.
The SIM card is not
properly installed.
Ensure the SIM card
is properly installed.
The metallic face of
the SIM card is
contaminated.
Wipe the face with a
clean cloth.
Failed to
connect to the
network
The SIM card is
invalid.
Contact your network
service provider.
Beyond the GSM
coverage.
Consult the network
service provider for
service areas.
The signal is feeble.
Retry at a stronger
signal area.
Failed to
make a call
The call barring
feature is used.
Cancel the call
barring settings.
The fixed dialing
number feature is
used.
Cancel the fixed
dialing number
settings.
PIN code
error
Enter incorrect PIN
codes for three times
in succession.
Contact your network
service provider.
Failed to
charge the
battery
The battery or the
charger is damaged.
Change a new battery
or charger.
Charge the battery
when
ambient
temperature
is
lower than -10
℃
or above 55
℃
.
Change the
environment.
Poor connection.
Check whether the
plug is properly
connected.
Failed to add
contacts to
phonebook
The storage space of
phonebook is used
up.
Delete some contacts
from the phonebook.
Failed to set
up some
features
Your network service
provider does not
provide the services,
or you haven’t
subscribed them.
Contact your network
service provider.
