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want to reduce the risk of viruses or other malicious software,

and to check the authenticity of software when you

download and install software to your device.

Tip: When you add a new certificate, check its

authenticity.

View certificate details

You can only be sure of the correct identity of a server when

the signature and the validity period of a server certificate

have been checked.
To view certificate details, open a certificate folder, and select

a certificate and Options > Certificate details.
One of the following notes may appear:
● Certificate not trusted — You have not set any

application to use the certificate. You may want to change

the trust settings.

● Expired certificate — The period of validity has ended

for the selected certificate.

● Certificate not valid yet — The period of validity has not

yet begun for the selected certificate.

● Certificate corrupted — The certificate cannot be used.

Contact the certificate issuer.

Back up data

Select Menu > Applications > Organiser > File mgr..
It is recommended that you back up the device memory

regularly to a memory card or a compatible computer.

To back up information from the device memory to a memory

card, select Options > Back up phone memory.
To restore information from the memory card to the device

memory, select Options > Restore from mem. card.
You can also connect your device to a compatible computer

and use Nokia Ovi Suite to back up data.

Application manager

With Application manager, you can see the software

packages installed in your device. You can view details of

installed applications, remove applications, and define

installation settings.
You can install two types of applications and software to your

device:
● JME applications based on Java™ technology with the .jad

or .jar file extensions

● Other applications and software suitable for the Symbian

operating system with the .sis or .sisx file extensions

Only install software that is compatible with your device.

Install applications

Select Menu > Settings > Data mgr. > App. mgr..
You can transfer installation files to your device from a

compatible computer, download them during browsing, or

receive them in a multimedia message, as an e-mail

attachment, or using other connectivity methods, such as

Bluetooth connectivity. You can use Nokia Application

Security and data management

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