72 ã1999 Nokia Mobile Phones. All Rights Reserved.16. ReferenceInformationAccess CodesYou can use the access codes described in this section to avoidunauthorised use of your phone and SIM card.The access codes (except PUK and PUK2 codes) can be changed byusing Menu 4-5-6. See the following section.Security Code (5 digits)The security code can be used to avoid unauthorised use of yourphone. The security code (security code) is usually suppliedwith the phone. Change the security code before you start usingyour phone. Keep the new code secret and safe place which isseparate from the phone.PIN Code (4 to 8 digits)The PIN (Personal Identification Number) code protects your SIMcard against unauthorised use. The PIN code is usually supplied withthe SIM card. When the PIN code request is enabled (Menu 4-5-1),the code is asked each time the phone is switched on.PIN2 Code (4 to 8 digits)The PIN2 code, supplied with some SIM cards, is required to accesssome functions, such as charging unit counters. These functions areonly available if supported by your SIM card.
