Nokia 5800 XpressMusic User Manual page 94

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 view the security certificate details of the application, select Details: >
Certificates: > View details. Control the use of digital certificates in Certificate
management.
● 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.
To install an application:
1. To locate an installation file, select Menu > Settings and Application mgr..
Alternatively, search installation files using File manager, or select Messaging >
Inbox, and open a message that contains an installation file.
2. In Application manager, select Options > Install. In 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 application.
To start an installed application, locate it in the menu, and select it. If the application
does not have a default folder defined, it is installed in the Installed apps. folder in the
main menu.
To see which software packages are installed or removed and when, select Options >
View log.
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. If the .sis file is a message attachment, delete the message
from the Messaging inbox.
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