Nokia 6555 - General information

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General information

Access codes

Security code

The security code (5 to 10 digits) helps to protect your phone against unauthorized use.
For more information on security codes, see "Security," p. 76.

PIN codes

The personal identification number (PIN) code and the universal personal
identification number (UPIN) code (4 to 8 digits) help to protect your SmartChip
card against unauthorized use. See "Security," p. 76.

The PIN2 code (4 to 8 digits) may be supplied with the SmartChip card and is
required for some functions.

The module PIN is required to access the information in the security module. See
"Security module," p. 51.

The signing PIN is required for the digital signature. See "Digital signature," p. 52.

PUK codes

The personal unblocking key (PUK) code and the universal personal unblocking
key (UPUK) code (8 digits) is required to change a blocked PIN code and UPIN
code, respectively. The PUK2 code (8 digits) is required to change a blocked PIN2
code. If the codes are not supplied with the SmartChip card, contact your local
service provider for the codes.

Restriction password

The restriction password (4 digits) is required when using the

Call restriction

service

. See "Security," p. 76.

Configuration settings service

To use some of the network services, such as mobile internet services, MMS, Nokia
Xpress audio messaging, or remote internet server synchronization, your phone
needs the correct configuration settings. For more information on availability,
contact your network operator, service provider, nearest authorized Nokia dealer,
or visit the support area on the Nokia website,

www.nokia.com/support

.

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When you have received the settings as a configuration message, and the
settings are not automatically saved and activated,

Configuration settings

received

is displayed.

To save the settings, select

Show

>

Save

. If required, enter the PIN code supplied

by the service provider.

To discard the received settings, select

Exit

or

Show

>

Discard

.

Download content

You may be able to download new content (for example, themes) to the phone
(network service).

For the availability of different services and pricing, contact your service provider.

Important: Use only services that you trust and that offer adequate
security and protection against harmful software.

Assisted Global Positioning System

Your phone may have Assisted Global Positioning System (A-GPS), a positioning
system that uses an assistance server and reference network to make measurements
and determine location. A-GPS is dependent on your network service. Contact
your provider for additional information.

A-GPS may also utilize cellular radio networks for aiding in positioning in some
circumstances where standalone GPS positioning is unavailable. This feature
requires network support and coverage.

A-GPS should not be used for precise location measurement, and you should
never rely solely on location data from the A-GPS module.

Nokia support

Check

www.nokia.com/support

or your local Nokia website for the latest version

of this guide, additional information, downloads, and services related to your
Nokia product.

On the website, you can get information on the use of Nokia products and
services. If you need to contact customer service, check the list of local Nokia
Care contact centers at

www.nokia.com/customerservice

.

For maintenance services, check your nearest Nokia service center at

www.nokia.com/repair

.

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