Nokia E71

Page 111
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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.
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.
To change the trust settings, select a certificate and
Options
 > 
Trust settings
. Select an application field and
press the scroll key to select 
Yes
 or 
No
. You cannot change
the trust settings of a personal certificate.
Depending on the certificate, a list of applications that can
use the certificate is displayed:
•
Symbian installation
  — New Symbian operating system
application.
•
Internet
  — E-mail and graphics.
•
App. installation
  — New Java™ application.
•
Online certif. check
  — Online certificate status protocol.
Security modules
Select 
Menu
 > 
Tools
 > 
Settings
 > 
General
 > 
Security
 >
Security module
.
View and edit security modules
To view or edit a security module, scroll to it, and press the
scroll key.
To view detailed information about a security module, select
Options
 > 
Security details
.
To edit the PIN codes for the security module, select 
Module
PIN
 to edit the PIN code for the security module or 
Signing
PIN
 to edit the PIN code for digital signatures. You may not
be able to change these codes for all security modules.
The key store contains the contents of the security module.
To delete the key store, select 
Key store
, select the desired
key store, and 
Options
 > 
Delete
. You may not be able to
delete the key store of all security modules.
Back up data
It is recommended to back up device memory regularly to the
memory card or a compatible computer.
To back up information from the device memory to a memory
card, select 
Menu
 > 
Tools
 > 
Memory
 > 
Options
 > 
Back
up phone memory
.
To restore information from the memory card to the device
memory, select 
Menu
 > 
Tools
 > 
Memory
 > 
Options
 >
Restore from card
.
You can also connect your device to a compatible computer
and use Nokia PC Suite to back up data.
Application manager
Select 
Menu
 > 
Installations
 > 
App. mgr.
.
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