Click on
in the main menu of the phone. Will open main screen which prompts to enter password:
Screen A.1: Enter Password
Success verification will open the
Main Menu screen. To create a Secure SMS, click on "Create New SMS" >
Enter the phone or select a number from the call logs and Click Options >
Send.
Screen A.2: Main Menu Screen
To change the Keys,
click on "Encryption Key" in the Main Screen and enter a new key.
Secure Call & SMS for GSM Series 60 devices :: Contact Us.
in the main menu of the phone. Will open main screen which prompts to enter password: 
