 
In minutes and seconds, enter the amount 
of time you want the phone to wait 
before turning Keyguard on, and press OK. For example, to enter five 
minutes, 
press ,
then
OK.
A confirmation message appears.
Tip: The shortest time you can enter is 10 seconds, and the longest 
time you can enter is 60 minutes.
You can still press Menu
, then
to unlock the keys manually and use
all the features of your phone. When you’re finished, keyguard 
automatically activates at the time you set. 
Note: Turn off Automatic Keyguard when using PC suite.