User's Manual

33
Too far from the network base station. Ask the network provider
for the regional layout.
Caused by trunk line malfunction; it is a
regional problem. Echo or noise
Regional bad connection.
Hang up and redial, the
trunk line might be
changed to a better one.
Standby time is related to network system
configuration.
In bad reception area,
temporarily turn off the
phone.
Need to change battery. Change battery.
Standby time
shortens
When there is no signal received, the phone
will keep searching for the base station can
shortens standby time.
Move to areas with strong
signal or temporarily turn
off the phone.
Unable to
switch on
Battery out. Check battery status or
charge.
SIM card damaged. Contact the network
service provider.
SIM card unfixed. Make sure SIM card has
been inserted and fixed
properly.
SIM card
problem
Stain on SIM card surface. Wipe the metal contact of
SIM card with clean
cloth.
SIM card invalid. Contact the network
provider. Unable to
connect to
network
Out of GSM service range. Contact the network
provider to check service