Nokia E52

Page 155
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Important: Your device can only support one antivirus application. Having more
than one application with antivirus functionality could affect performance and
operation or cause the device to stop functioning.
After you install applications to a compatible memory card, installation files (.sis, .sisx)
remain in the device memory. The files may use large amounts of memory and prevent
you from storing other files. To maintain sufficient memory, use Nokia PC Suite to back
up installation files to a compatible PC, then use the file manager to remove the
installation files from the device memory. If the .sis file is a message attachment, delete
the message from the Messaging inbox.
Remove applications and software
Select 
Menu
 > 
Ctrl. panel
 > 
App. mgr.
 and 
Installed apps.
.
Scroll to a software package, and select 
Options
 > 
Uninstall
. Select 
Yes
 to confirm.
If you remove software, you can only reinstall it if you have the original software
package or a full backup of the removed software package. If you remove a software
package, you may no longer be able to open documents created with that software.
If another software package depends on the software package that you removed, the
other software package may stop working. For more information, see the
documentation of the installed software package.
Application manager settings
Select 
Menu
 > 
Ctrl. panel
 > 
App. mgr.
.
Select 
Options
 > 
Settings
 and from the following:
Software installation  — Select whether Symbian software that has no verified digital
signature can be installed.
Online certificate check  — Check the online certificates before installing an
application.
Default web address  — Set the default address used when checking online certificates.
Some Java applications may require that a message be sent or a network connection be
made to a specific access point to download extra data or components.
Licenses
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 WMDRM 10 and OMA DRM 2.0. If certain DRM software
Security and data management 155
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