 
Install applications and software
indicates a .sis application,
a Java application,
that the application is not fully installed, and
that the application is installed on the memory card.
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
TM
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
Options
>
View certificate
. See
‘Certificate management’, p. 121.
• 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 back-up 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 back-up 
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.
1
To locate an installation file, press
, and select
Tools
>
App. mgr.
. Alternatively, search the device
memory or a compatible memory card (if inserted) in
File manager
, or open a message in
Messag.
>
Inbox
that contains an installation file.
2
In
App. manager
, select
Options
>
Install
. In other
applications, scroll to the installation file, and press
to start the installation.
During installation, the device shows information 
about the progress of the installation. If you are 
installing 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 
press .
 
Tools
113
To start a network connection and to view extra 
information about the application, select 
Options
>
Go to
web address
, if available.
To see what 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.
Installation files (.sis) of applications that are stored in the 
device memory will remain in the memory after the 
application has been installed to a compatible miniSD 
card. Stored installation files may consume large amounts 
of device memory, leaving insufficient memory to store 
new applications, messages and other files. To help prevent 
this, first backup the installation file to a compatible PC 
using Nokia PC Suite, then remove the installation file 
from the device memory using 
File manager
(see ‘File
manager’, p. 15).