Tools SecurityPhone and SIMPIN code request—When active, the code is requestedeach time the device is switched on. Deactivating thepersonal identification number (PIN) code request may notbe allowed by some SIM cards. See “Glossary of PIN andlock codes”, p. 94.PIN code, PIN2 code, and Lock code—You can change thelock code, PIN code, and PIN2 code. These codes can onlyinclude the numbers from 0 to 9. See “Glossary of PIN andlock codes”, p. 94.Avoid using access codes similar to the emergencynumbers to prevent accidental dialling of the emergencynumber.When the device is locked, calls may be possible to theofficial emergency number programmed into your device.Tip! To lock the device manually, press . A list ofcommands opens. Select Lock phone.Lock if SIM changed—You can set the device to ask forthe lock code when an unknown SIM card is inserted intoyour device. The device maintains a list of SIM cards thatare recognised as the owner’s cards.Closed user group—You can specify a group of people towhom you can call and who can call you (network service).When calls are limited to closed user groups, calls may bepossible to the official emergency number programmedinto your device.Confirm SIM services—You can set the device to displayconfirmation messages when you are using a SIM cardservice (network service).
