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MENU > Settings > Display > Activity Alert
16.4 Security Settings
To change Security Settings, select:
MENU > Settings > Security
16.4.1 PIN
To enable or disable the PIN code request or to change
your PIN code, select:
MENU > Settings > Security > PIN
16.4.2 PIN 2
PIN 2 is a security code for advanced mobile phone
features on a given SIM card. It is required to reset total
call charges or to enable the Fixed Dialing Number (FDN).
Contact your service provider to get the PIN2.
To change the PIN 2, select:
MENU > Settings > Security > PIN