170Solving problemsIf you are experiencing problems with your phone,perform the following simple checks, beforecontacting a service professional. This may saveyou the time and expense of an unnecessaryservice call.When you switch on your phone, thefollowing 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 youcan use the phone.Enter PIN• You are using your phone for the first time. Youmust enter the Personal Identification Number(PIN) supplied with the SIM card.• The PIN check feature is enabled. Every time thephone is switched on, the PIN has to be entered.To disable this feature, use the PIN check menu(Menu 9.6.1)Enter PUK• The PIN code was entered incorrectly three timesin succession and the phone is now blocked.Enter the PUK supplied by your service provider.
