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Unable to connect with
the network
Unable to make a call
Incorrect PIN number
Unable to charge
Unable to add new phone
book entries
Unable to set certain
functions
There is a foreign substance on
the metal surface of the SIM
card.
Expired SIM card
Outside the GSM service area
Poor signal.
Using the call bar function
Using
the
fixed
function.
Consecutively enter the wrong
password three times.
Battery or charger is damaged Replace
Recharging in the environment
of less than -10℃or higher
than 45℃.extreme temperatures
can cause deformation of mobile
phone,
reduce the charging
capacity
and
service life of the battery and
the mobile phone .
Poor contact
The storage space of the phone
book is full
Your network provider does not
support this function or you
have not applied for it.
Use a clean cloth
to wipe off the
metal
point of the SIM
card.
Contact
network provider.
Consult
network
on
area.
Please move to a
place with a better
signal
again.
Cancel the call bar
function.
dialling
Cancel the fixed
call setting.
Contact
network provider.
battery
charger.
Change
charging
environment.
shorten
the
Check if the plug
is
connected
Delete a portion of
the phone number
entries
Contact
network provider.
contact
your
your
provider
the
service
and
try
your
the
or
the
properly
your
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