Nokia N71

Page 94
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Tools
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After three consecutive incorrect PIN code entries, the 
code is blocked, and you need the PUK code to unblock it.
UPIN code—This code may be supplied with the USIM card. 
The USIM card is an enhanced version of the SIM card and 
is supported by UMTS mobile devices.
PIN2 code—This code (4 to 8 digits) is supplied with some 
SIM cards, and is required to access some functions in your 
device.
Lock code (also known as security code)—This code (5 
digits) can be used to lock the device to avoid unauthorized 
use. The factory setting for the lock code is 12345. To 
avoid unauthorized use of your device, change the lock 
code. Keep the new code secret and in a safe place 
separate from your device. If you forget the code, contact 
your service provider.
Personal unblocking key (PUK) code and PUK2 code—These 
codes (8 digits) are required to change a blocked PIN code 
or PIN2 code, respectively. If the codes are not supplied 
with the SIM card, contact the operator whose SIM card is 
in your device.
UPUK code—This code (8 digits) is required to change a 
blocked UPIN code. If the code is not supplied with the 
USIM card, contact the operator whose USIM card is in 
your device.
Certif. management
Digital certificates do not guarantee safety; they are used 
to verify the origin of software.
In the certificate management main view, you can see a 
list of authority certificates that are stored in your device. 
Press 
 to see a list of personal certificates, if available.
Digital certificates should be used if you want to connect 
to an online bank or another site or remote server for 
actions that involve transferring confidential information. 
They should also be used if you want to reduce the risk of 
viruses or other malicious software and be sure of the 
authenticity of software when downloading and installing 
software.
 Important: Even if the use of certificates makes the 
risks involved in remote connections and software 
installation considerably smaller, they must be used 
correctly in order to benefit from increased security. The 
existence of a certificate does not offer any protection by 
itself; the certificate manager must contain correct, 
authentic, or trusted certificates for increased security to 
be available. Certificates have a restricted lifetime. If 
Expired certificate
 or 
Certificate not valid yet
 is shown 
even if the certificate should be valid, check that the 
current date and time in your device are correct.
View certificate details
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