Motorola SLVR V8 Manual page 50

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
page 58). A locked phone still rings or vibrates for incoming
calls or messages, but you need to unlock it to answer.
lock & unlock keypad
You can lock your keypad to prevent accidental key presses.
Press - * to lock or unlock the keypad.
50 basics