Certificate Management - Nokia N Serie Manual Del Usuario

Glossary of PIN and lock codes
If you forget any of these codes, contact your service provider.
Personal identification number (PIN) code—This code
protects your SIM card against unauthorized use. The PIN
code (4 to 8 digits) is usually supplied with the SIM card.
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 WCDMA mobile phones.
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
All manuals and user guides at all-guides.com
USIM card, contact the operator whose USIM card is in
your device.

Certificate 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.
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