Memory card securitySelect Menu > Tools > Memory.You can protect a memory card with a password to preventunauthorised access. To set a password, select Options >Set password. The password can be up to 8 characters longand is case-sensitive. The password is stored in your device.You do not need to enter it again while you use the memorycard on the same device. If you use the memory card onanother device, you are asked for the password. Not allmemory cards support password protection.To remove the memory card password, select Options >Remove password. When you remove the password, thedata on the memory card is not protected againstunauthorised use.To open a locked memory card, select Options > Unlockmemory card. Enter the password.If you cannot recall the password to unlock a locked memorycard, you may reformat the card, in which case the card isunlocked and password removed. Formatting a memory carddestroys all data stored on the card.Fixed diallingSelect Menu > Contacts > Options > SIM contacts >Fixed dial contacts.With the fixed dialling service, you can restrict calls from yourdevice to certain phone numbers. Not all SIM cards supportthe fixed dialling service. Contact your service provider formore information.When fixed dialling is activated, calls may be possible to theofficial emergency number programmed into your device.1. To restrict calls from your device, select Options > NewSIM contact and enter the contact name and phonenumber to the list of numbers to which calls are allowed,or select Add from Contacts to copy the contact fromContacts. To restrict calls by a country prefix, enter thecountry prefix in the list of numbers. All phone numbersto which calls are allowed must start with this countryprefix.2. Select Options > Activate fixed dialling. You need yourPIN2 code to activate and deactivate fixed dialling or edityour fixed dialling contacts. Contact your service providerif you do not have the code. To cancel the service, selectOptions > Deactivate fixed dialling.Tip: To send text messages to the SIM contacts whilethe fixed dialling service is active, you need to add thetext message centre number to the fixed dialling list.Certificate managerSelect Menu > Tools > Settings > General > Security >Certificate management.Digital certificates are used to verify the origins of softwarebut do not guarantee safety. There are four different types ofcertificates: authority certificates, personal certificates,trusted site certificates, and device certificates. During aSecurity and data management© 2007 Nokia. All rights reserved. 107
