Samsung SGH-Z400 Cell Phone User Manual


 
Solve problems
82
“No service,” “Network failure,” or “Not done”
displays
The network connection has been lost. You may
be in a weak signal area. Move and try again.
You are trying to access an option for which you
have no subscription with your service provider.
Contact the service provider for further details.
You have entered a number but it was not
dialled
Be sure that you have pressed [ ].
Be sure that you have accessed the right cellular
network.
Be sure that you have not set an outgoing call
barring option.
Your correspondent cannot reach you
Be sure that your phone is switched on. ([ ]
pressed for more than one second.)
Be sure that you are accessing the correct
cellular network.
Be sure that you have not set an incoming call
barring option.
Your correspondent cannot hear you speaking
Be sure that you have switched on the
microphone.
Be sure that you are holding the phone close
enough to your mouth. The microphone is
located at the bottom of the phone.
The phone starts beeping and “Low battery”
flashes on the display
Your battery is insufficiently charged. Recharge
the battery.
The audio quality of the call is poor
Check the signal strength indicator on the
display ( ). The number of bars indicates the
signal strength from strong ( ) to weak ( ).
Try moving the phone slightly or moving closer
to a window if you are in a building.
No number is dialled when you re-call a
Contacts entry
•Use the
Search contact
feature to ensure the
number has been stored correctly.
Re-store the number, if necessary.
The battery does not charge properly or the
phone sometimes turns itself off
Wipe the charging contacts both on the phone
and on the battery with a clean soft cloth.
If the above guidelines do not help you to solve
the problem, take note of:
The model and serial numbers of your phone
Your warranty details
A clear description of the problem
Then contact your local dealer or Samsung after-
sales service.