Have someone used nokia 5210 or 3410 model? In the settings menu you'll got keyguard settings and in that menu you got 2 choice one automatic keyguard the second is keyguard code, I wonder if there a possibility to put this option in nokia 3315 for automatic keyguard it has but for keyguard code no. So plz if there someone goods enough in coding or I don't know who can help, so plz give me a reply. Cause I like this preety option.