When automatic key lock is activated, the keypad is locked automatically when no key has been pressed for an optional number of minutes.

Follow these instructions to activate or deactivate the automatic key lock on your BlackBerry Curve 8520.

1. Find Password
   Press the Menu key
   Scroll to Options and press the Navigation key
   Scroll to Password and press the Navigation key
   
   
2. Activate or deactivate
   Scroll to Password and press the Navigation key
   
   To activate automatic key lock:
   Scroll to Enabled and press the Navigation key
   Scroll to Security Timeout and press the Navigation key
   Highlight the number of minutes the phone has to be inactive for before the key lock is automatically activated, and press the Navigation key
   
   To deactivate automatic key lock:
   Scroll to Disabled and press the Navigation key
   
   
3. Save settings
   Press the Menu key
   Scroll to Save and press the Navigation key
   Key in an optional phone lock code and press the Navigation key
   Key in the phone lock code again and press the Navigation key
   
   Please note: When the phone locks after the set duration, you need to key in the phone lock code to unlock the phone.
   
   
4. Exit
   Press Disconnect to return to standby mode