21
unable to
connect the
network
SIM card is invalid
Contact
your
network
service supplier.
Beyond the GSM or 3G network
service area.
Ask your network service
supplier the service area.
The signal is weak
Please move to the strong
signal place to retry
Calls
unable to call
set up the call barring
function
cancel the call barring
function
set up the fixed dial function
cancel the fixed dial
function.
PIN error
input incorrect PIN Code in
three times
contact your network
service supplier.
Unable to
charge
Battery or charger damaged
need to replace new battery or
charger
Charge in lower than -10 ℃ or
higher than 50℃ environment
change
the
charging
environment
Bad contact
check
whether
the
plug
connection well
Unable to
add phonebook
record
Phonebook memory is full
Delete some part of
phonebook record.
unable to
set up some
function
Network provider does not
support this feature, or you did
not apply for this function
Contact
your
network
provider.