Samsung SPH-M520ZSAQST - Manual (Page 106)

80 Section 2C: Setting Your Phone’s Security
Locking Pic/Video
When your pictures and videos are locked, it prevents anyone from
accessing the Pic/Video menu without first entering a security code. You
can choose to lock the Camera/Video or Picture menus independently or to
lock all menus.
To lock the pic/video menu:
1. Select Menu > Settings > More > Restrict and Lock >
Camera/Pictures.
2. Enter your lock code. (The Picture/Video Lock? security menu
is displayed.)
3. Select Lock All and press .
Changing the Lock Code
To change your lock code:
1. Select Menu > Settings > More > Security.
2. Enter your lock code. (The Security menu is displayed.)
3. Select Change Lock Code.
4. Enter your new lock code and select Next ( ).
5. Re-enter your new lock code and select Done ( ).