Samsung SGH-S307SSACIN - Manual (Page 63)

118
Solving Problems
Before contacting the after-sales service, perform
the following simple checks. They may save you the
time and expense of an unnecessary service call.
When you switch your phone on, the
following messages may appear
Insert SIM Card
• Check that the SIM card is correctly installed.
Phone Locked Enter Password
• The automatic locking function has been enabled.
You must enter the phone’s password before you
can use the phone.
Enter PIN
• You are using your phone for the first time. You
must enter the Personal Identification Number
supplied with the SIM card.
• The PIN Check feature is enabled. Every time the
phone is switched on, the PIN has to be entered.
To disable this feature, use the PIN Check menu
option (Menu 4.6.1).
Enter PUK
• The PIN code was entered incorrectly three times
in succession and the phone is now blocked.
Enter the PUK supplied by your network operator.
Solving Problems
119
“No service,” “Network failure” or “Not
done” displays
• The network connection was lost. You may be in a
weak signal area (in a tunnel or surrounded by
buildings). Move and try again.
• You are trying to access an option for which you
have not taken out a subscription with your
service provider. Contact the service provider for
further details.
You have entered a number but it was
not dialed
• Have you pressed the key?
• Are you accessing the right cellular network?
• You may have set an outgoing call barring option.
Your correspondent cannot reach you
• Is your phone switched on (the key
pressed for more than one second)?
• Are you accessing the right cellular network?
• You may have set an incoming call barring option.
Your correspondent cannot hear you
speaking
• Have you switched off the microphone?
• Are you holding the phone close enough to your
mouth? The microphone is located at the bottom
of the phone.