Lock your device
To prevent unauthorised use of your device, change the lock
code, and set the device to automatically lock after a certain
length of time.
Briefly press the power key, and select
Secure device
.
Unlock your device
Enter the lock code, and select
Done
.
Set the length of the time-out period
Select
>
Settings
and
Device lock
>
Autolock
, and
select the length of time.