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Data manager
contain several keys, are indicated with  . To view the 
keys contained in the group key, select the group key.
To view invalid keys ( ) with which the time period for 
using the file is exceeded, select Invalid keys. To buy more 
usage time or extend the usage period for a media file, 
scroll to a key, and select Options > Get activation key. It 
may not be possible to update activation keys if web 
service message reception is disabled. See "Service 
message settings", p. 46.
To view activation keys that are not in use, select Not in 
use. Unused activation keys have no media files connected 
to them.
To view detailed information such as the validity status 
and the ability to send the file, scroll to an activation key, 
and press the scroll key.
Digital rights management
Content owners may use different types of digital rights 
management (DRM) technologies to protect their 
intellectual property, including copyrights. This device uses 
various types of DRM software to access DRM-protected 
content. With this device you can access content protected 
with OMA DRM 2.0 and OMA DRM 1.0. If certain DRM 
software fails to protect the content, content owners may 
ask that such DRM software's ability to access new DRM-
protected content be revoked. Revocation may also 
prevent renewal of such DRM-protected content already in 
your device. Revocation of such DRM software does not 
affect the use of content protected with other types of 
DRM or the use of non-DRM-protected content.
Digital rights management (DRM) protected content 
comes with an associated activation key that defines your 
rights to use the content.
If your device has OMA DRM protected content, to back up 
both the activation keys and the content, use the backup 
feature of Nokia PC Suite. Other transfer methods may not 
transfer the activation keys which need to be restored with 
the content for you to be able to continue the use of OMA 
DRM protected content after the device memory is 
formatted. You may also need to restore the activation 
keys in case the files on your device get corrupted.
Some activation keys may be connected to a specific SIM 
card, and the protected content can be accessed only if the 
SIM card is inserted in the device.