S e t t i n g s74Closed user group — to specify a group of people whom you can call andwho can call you (network service)Security level > Phone — to set the phone to ask for the security codewhenever a new SIM card is inserted into the phone. If you selectSecurity level > Memory, the phone asks for the security code when theSIM card memory is selected, and you want to change the memory inuse.Access codes — to change the security code, PIN code, PIN2 code, orbarring passwordCode in use — to select whether the PIN code or UPIN code is activeAuthority certificates or User certificates — to view the list of theauthority or user certificates downloaded into your phone. See“Certificates,” p. 105.Security module settings — to view Security module details, activateModule PIN request, or change the module PIN and signing PIN. See also“Access codes,” p. 9.■ Phone updatesYour service provider may send phone software updates over the airdirectly to your device. This option may not be available, depending onyour phone.Warning: If you install a software update, you cannot use thedevice, even to make emergency calls, until the update iscompleted and the device is restarted. Be sure to back up databefore accepting a software update.SettingsTo allow or disallow phone software updates, select Menu > Settings >Configuration > Device manager settings >Service prov. sw updates and from the following options:Always allow — to perform all software downloads and updatesautomaticallyAlways reject — to reject all software updates