Sanyo Katana DLX User Manual page 112

Locking Sprint Vision Services
You can lock access to Sprint Vision services, including Sprint
Power Vision while signed in.
To lock SprintVision:
1.
Select
2.
Select Data > Off and Lock, and then enter your lock code.
(The Restrict and Lock menu is displayed.)
3.
Select Locked. (Select Unlocked to deactivate this
feature.)
94 Section 2C: Setting Your Phone's Security
> Settings > More... > Restrict and Lock.