Samsung SGH-X686 User Manual page 82

"Enter PUK"
• The PIN code has been entered incorrectly three
times, and the SIM card is now blocked. Enter the
PUK supplied by your service provider.
"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 dialed
• 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.)
•
•
Your correspondent cannot hear you speaking
•
•
The phone starts beeping and "Warning. Low
battery" flashes on the display
]. •
The audio quality of the call is poor
•
•
]
Be sure that you are accessing the correct cellular
network.
Be sure that you have not set an incoming call
barring option.
Be sure that you have switched off 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.
Your battery is insufficiently charged. Recharge the
battery.
Check the signal strength indicator on the display
( ). The number of bars indicates the signal
strength from strong (
Try moving the phone slightly or moving closer to a
window if you are in a building.
) to weak ( ).
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