Access Codes; Security Code - Nokia 640 User Manual

This apparatus is intended for use when supplied with power from
ACP-7, ACP-8, ACP-9, LCH-9, HFU-2 battery chargers. Other usage
will invalidate any approval given to this apparatus and may be
dangerous.

Access codes

The access codes described in this chapter help you protect against
unauthorised use of your phone.
When asked for any of the access codes, key in the proper code and
press OK. If you make a mistake, first delete the digit with
and then key in the correct one.
Note: Avoid using access codes similar to emergency
numbers, such as 112, to prevent accidental dialling of the
emergency number.

Security code

The security code is supplied with the phone. It protects your phone
against unauthorised use. Keep the code secret and in a safe place,
separate from the phone.
PIN code
The PIN (Personal Identity Number) code protects your phone
against unauthorised use. The default PIN code is 0000. Please
change the PIN code with Menu 4 3 2, Security Settings, change PIN
code. When the PIN code request is enabled the code is asked each
time the phone is switched on. If you enter an incorrect PIN code
three times you need to know the security code to be able to use the
phone again.
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