Nokia 6151 User Guide - Page 60
Digital rights management, Phone software updates, Warning - free themes
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Settings Authority certificates or User certificates - to view the list of the authority or user certificates downloaded into your phone. See "Certificates," p. 92. Security module settings - to view Security module details, activate Module PIN request, or change the module PIN and signing PIN. See also "Access codes," p. 9. ■ Digital rights management Digital rights management (DRM) is copyright protection, designed to prevent modification and to limit distribution of protected files. When you download protected files, such as sound, video, themes, or ringing tones to your phone, the files are free, but locked. You pay for the key to activate the file, and the activation key is automatically sent to your phone when you download the file. To view the permissions for a protected file, scroll to the file, and select Options > Activation keys. For example, you can see how many times you can view a video or how many days you have left for listening to a song. To extend the permissions for a file, select Options and the corresponding option for the file type, such as Activate theme. You can send certain types of protected files to your friends, and they can buy their own activation keys. This phone supports OMA DRM 1.0. ■ Phone software updates Your service provider may send phone software updates over the air directly to your device. This option may not be available, depending on your phone. Warning: If you install a software update, you cannot use the device, even to make emergency calls, until the update is completed and the device is restarted. Be sure to back up data before accepting a software update. 60