Lock & Unlock Phone
You can lock your phone to keep others from using it. To lock or unlock your phone, you need the
To manually lock your phone, press 
> Settings > Security > Phone Lock > Lock Now.
To automatically lock your phone whenever you turn it off, press 
> Settings > Security > Phone Lock > Automatic Lock > On.
Note: You can make emergency calls on a locked phone (see Emergency Calls on page 50). A locked phone still rings for incoming calls or messages, but you need to unlock it to answer.
40 – Basics