User's Manual
In some areas, the call lines are in
badcondition.
Shorter
standby
time
The standby time is relevant to
networksettings.
In poor reception areas, turn off your
phonetemporarily.
Replacethebatteries Changewithanewbattery.
When no signals are received, your
phone will continue searching for
base stations, thus consuming a
large amount of battery power and
reducingstandbytime.
Use your phone at strong signal areas or
Turnoffthephonetemporarily.
Failed to
turnonyour
phone
Thebatterypowerisusedup. Check the battery power level or charge
thebattery.
SIM card
error
TheSIMcardisdamaged. Contactyournetworkserviceprovider.
The SIM card is not properly
installed.
EnsuretheSIMcardisproperlyinstalled.
The metallic face of the SIM card is
contaminated.
Wipethefacewithacleancloth.
Failed to
connect to
thenetwork
TheSIMcardisinvalid. Contactyournetworkserviceprovider.
BeyondtheGSMcoverage. Consult the network service provider for
serviceareas.
Thesignalisfeeble. Retryatastrongersignalarea.
Failed to
makeacall
Thecallbarringfeatureisused. Cancelthecallbarringsettings.
The fixe d dialing number feature is
used.
Cancelthefixeddialingnumbersettings.
PIN code
error
Enter incorrect PIN codes for three
timesinsuccession.
Contactyournetworkserviceprovider.
Failed to
charge the
battery
The battery or the charger is
damaged.
Changeanewbatteryorcharger.
Charge the batterywhen ambient
temperature is lowerthan‐10℃
orabove55℃.
Changetheenvironment.
Poorconnection. Check whether the plug is properly
connected.
Failed to
addcontacts
to
phonebook
The storage space of phonebook is
usedup.
Delete some contacts from the
phonebook.
Failed to set
up some
features
Your network service provider does
not provide the services, or you
haven’tsubscribedthem.
Contactyournetworkserviceprovider.