Samsung SGH-P735MSATMB - Manual (Page 144)

Solving problems
143
Solving problems
If you are experiencing problems with your phone, perform the
following simple checks, before contacting a service
professional. This 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 (PIN) 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.
Enter PUK
The PIN code was entered incorrectly three times in succession
and the phone is now blocked. Enter the PUK supplied by
your service provider.
“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.