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Module PIN request — to set the phone to ask for the module PIN when using 
services provided by the security module. Enter the code and select On. To disable 
the module PIN request, select Off.
Change module PIN — to change the module PIN, if allowed by the security 
module. Enter the current module PIN code, then enter the new code twice.
Change signing PIN — to change the signing PIN code for the digital signature. 
Select the signing PIN you want to change. Enter the current PIN code, then enter 
the new code twice.
See also “Access codes,” p. 17.
Certificates
Important: Note that 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.
Before changing any certificate settings, you must make sure that you really trust 
the owner of the certificate and that the certificate really belongs to the listed 
owner.
There are three kinds of certificates: server certificates, authority certificates and 
user certificates; you may receive any of these certificates from your service