Nokia E52 User Manual page 86

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Important: Only install and use applications and
other software from trusted sources, such as applications
that are Symbian Signed or have passed the Java
Verified™ testing.
Before installation, note the following:
• To view the application type, version number, and the
supplier or manufacturer of the application, select
Options View details.
>
To display the security certificate details of the
application, select Details: Certificates:
>
details.
• If you install a file that contains an update or repair to
an existing application, you can only restore the
original application if you have the original installation
file or a full backup copy of the removed software
package. To restore the original application, remove
the application, and install the application again from
the original installation file or the backup copy.
The JAR file is required for installing Java applications.
If it is missing, the device may ask you to download it.
If there is no access point defined for the application,
you are asked to select one. When you are downloading
the JAR file, you may need to enter a user name and
password to access the server. You obtain these from
the supplier or manufacturer of the application.
To install software or an application, do the following:
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1. To locate an installation file, select
panel App. mgr.. Alternatively, search for
>
installation files using File manager, or select
Messaging > Inbox, and open a message that
contains an installation file.
2. In Application manager, select
other applications, select the installation file to start
the installation.
During installation, the device shows information
about the progress of the installation. If you install an
application without a digital signature or certification,
the device displays a warning. Continue installation
only if you are sure of the origin and contents of the
View
>
application.
To start an installed application, locate the application in
the menu, and select the application.
To see which software packages are installed or removed
and when, select Options
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
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Menu Ctrl.
>
Options > Install. In
View log.
>
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