Select
Menu
>
Settings
and
Phone
>
Phone mgmt.
>
Security
>
Certificate
management
and select the desired certificate type.
Digital certificates do not guarantee safety; they are used to verify the origin of
software.
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
shown, even if the certificate should be valid, check that the current date and time
in your device are correct.
Security module
The security module provides security services for different applications.
Select
Menu
>
Settings
and
Phone
>
Phone mgmt.
>
Security
>
Security
module
and the desired security module.
View security module details
— Select
Options
>
Security details
.
Restore original settings
Select
Menu
>
Settings
and
Phone
>
Phone mgmt.
>
Factory settings
.
You can reset some of the settings to their original values. To do this, you need the
lock code.
After resetting, the device may take a longer time to power on. Documents and files
are unaffected.
Protected content
To manage digital rights licences, select
Menu
>
Settings
and
Phone
>
Phone
mgmt.
>
Security
>
Protected content
.
Settings
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