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Nokia 
6820 User Guide
65
Copyright © Nokia 2004
Settings
SECURITY CODE
The security code is 5 to 10 digits and protects your phone against unauthorized use. The 
preset code is 12345. When you have changed the code, keep the new code secret and in a 
safe place separate from your phone. To change the code, and to set the phone to request 
it, see “Security settings” on page 64.
If you key in an incorrect security code five times in succession, the phone may display Code 
error
. Wait for five minutes and key in the code again.
PIN AND PIN2 CODES 
The PIN (personal identification number) code is 4 to 8 digits and protects your SIM card 
against unauthorized use. The PIN code is usually supplied with the SIM card. To set the 
phone to request the PIN code each time the phone is switched on, see “Security settings” 
on page 64
.
The PIN2 code may be supplied with the SIM card and is required to access some functions.
MODULE PIN
The module PIN code is 4 to 8 digits and is required to access the information in the security 
module. See “Security module” on page 89. The module PIN is supplied with the SIM card if 
the SIM card has a security module in it. 
SIGNING PIN
The signing PIN is 4 to 8 digits and is required for the digital signature. See “Digital 
signature” on page 90
. The signing PIN is supplied with the SIM card if the SIM card has a 
security module in it.
PUK AND PUK2 CODES (8 DIGITS)
The PUK (personal unblocking key) code is required to change a blocked PIN code. The PUK2 
code is required to change a blocked PIN2 code.
If the codes are not supplied with the SIM card, contact your service provider.
If you key in an incorrect PIN code three times in succession, the phone may display PIN 
blocked
 or PIN code blocked and ask you to key in the PUK code.
RESTRICTION PASSWORD (4 DIGITS)
The restriction password is required when using the Call restriction service. You can obtain 
the password from your service provider.
WALLET CODE (4 TO 10 DIGITS)
The wallet code is required to access the wallet services. If you key in an incorrect wallet 
code several times, the wallet application is blocked for five minutes. For further 
information, see “Wallet” on page 74.