connect to
a network
Poor
quality of
calling
SIM Card
Error
Unable to
dial out
Callers
unable to
contact
you
Unable to
charge
handset
with strong signal and try connecting to the
network again;
Please ensure that you are not beyond the
network coverage of service providers;
Please ensure you have a valid SIM card. Please
contact
your
information;
Please check if the sound volume is tuned
improperly
In an area with poor receiving condition,
example: basement, the signal might be weak.
Try reaching a location with stronger signal
reception and call again.
While using the mobile phone in the peak period
of communication, like commute time, you may
be unable to call because of line congestion.
Dirt on the metal surface of an SIM card. Use
clean cloth to wipe the metal touch point on an
SIM card.
The SIM card is not installed.
The SIM card is damaged. Please contact your
network service provider.
Please confirm if you press ED the dial key after
dialing.
Please confirm if calling is forbidden because of
default settings.
Please confirm if the SIM is valid.
Please confirm if the call barring is set.
Please confirm if the fixed dial function is set.
Please confirm if the mobile phone is on and
connected with the network.
Please confirm if calling is forbidden because of
defaulting.
Please confirm if the SIM card is valid.
Please confirm if the call barring is set.
Poor contact. Please check if the plug is
connected well.
Please confirm if the environment temperature is
network
provider
for
further