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Certificates
Important: Even if the use of certificates makes the risks involved in remote
connections and software installation considerably smaller, they must be used
correctly in order to benefit from increased security. The existence of a certificate
does not offer any protection by itself; the certificate manager must contain
correct, authentic, or trusted certificates for increased security to be available.
Certificates have a restricted lifetime. If "Expired certificate" or "Certificate not
valid yet" is displayed, even if the certificate should be valid, check that the current
date and time in your phone are correct.
Before changing any certificate settings, you must make sure that you really trust
the owner of the certificate and that the certificate really belongs to the listed
owner.
There are three kinds of certificates: server certificates, authority certificates, and user
certificates. You may receive these certificates from AT&T.
To view the list of the authority or user certificates downloaded to your phone, select >
Settings > Config. > General > Security > Certificate management.
9. MEdia Mall
In the standby mode, to access the AT&T Mall website, select > MEdia Mall. MEdia Mall
provides links to content such as tones, games, graphics, video clips, multimedia, and
applications that may be purchased and downloaded to your phone.
If you have questions about billing or about accessing this website, contact AT&T.
10. AT&T Music
The AT&T Music menu provides access to the music player, music-related tools, applications,
and services.
To open the music player in the standby mode, select > AT&T Music > Music Player.
You can extend the available memory with a microSD memory card. Your phone supports a
microSD card with a capacity of up to 8 GB memory. You can insert or remove a microSD
card without switching the phone off. For more information on inserting a microSD card, see
"Insert the microSD card," p. 11.
To maximize the performance of your phone, it is recommended that no more than 100 files
are stored in any folder.
Use only compatible microSD cards approved by Nokia for use with this phone. Nokia uses
approved industry standards for memory cards, but some brands may not be fully compatible