164Solving problemsBefore contacting the after-sales service, performthe following simple checks. They may save you thetime and expense of an unnecessary service call.When you switch your phone on, thefollowing messages may appearNo SIM cardCheck that the SIM card is correctly installed.Phone locked Enter passwordThe Phone lock feature is enabled. You must enterthe phone’s password before you can use thephone.Enter PIN• You are using your phone for the first time. Youmust enter the Personal Identification Numbersupplied with the SIM card.• The PIN check feature is enabled. Every time thephone is switched on, you must enter the PIN. Todisable this feature, use the PIN check menuoption. See page 155.Enter PUKThe PIN was entered wrongly three times insuccession and the phone is now blocked. Enter thePUK supplied by your network operator.
