9The module PIN is required to access the information in the security module. Themodule PIN is supplied with the SIM card if the SIM card has a security module init.The signing PIN is required for the digital signature. The signing PIN is suppliedwith the SIM card if the SIM card has a security module in it.PUK codesThe personal unblocking key (PUK) code and the universal personal unblocking key(UPUK) code (8 digits) are required to change a blocked PIN code and UPIN code,respectively. The PUK2 code is required to change a blocked PIN2 code.If the codes are not supplied with the SIM card, contact your local service providerfor the codes.Barring passwordThe barring password (4 digits) is required when using Call barring. See “Callbarring,” p. 78. You can obtain the password from your service provider.If you enter an incorrect barring password three times in succession, the passwordis blocked. Contact your service provider.■ Nokia support and contact informationOn the web site, you can get information on the use of Nokia products andservices. If you need to contact customer service, check the list of local Nokiacontact centers at www.nokia.com/customerservice.For maintenance services, check your nearest Nokia service center atwww.nokia.com/repair.Software updatesNokia may produce software updates that may offer new features, enhanced functions, orimproved performance. You may be able to request these updates through the NokiaSoftware Updater PC application. To update the device software, you need the NokiaSoftware Updater application and a compatible PC with Microsoft Windows 2000 or XPoperating system, broadband internet access, and a compatible data cable to connect yourdevice to the PC.To get more information and to download the Nokia Software Updater application, visitwww.nokia.com/softwareupdate or your local Nokia web site.