How do I lock the keypad lock on my Nokia device?

To lock the keys manually in the home screen, press the left selection key and *.To unlock the keys, press the left selection key and *.To lock the keys in the menu or in an open application, press the power key briefly, and select Lock keypad.

The keypad of your device locks automatically to prevent the keys from being accidentally pressed. To change the period after which the keypad is locked, select Menu > Tools > Settings > General > Security > Phone and SIM card > Keypad autolock period.

Applies to E51, E71, E63 and N78.