English: When you press the touch button to open the lock, the corresponding LED will flash repeatedly without the secure lock mode of the lock being active on your Classe 300 EOS so that the buttons are only active when an audio/video link is established between the videophone and the external unit. To deactivate the secure lock mode: - Remove the Classe 300 EOS from the wall bracket - Remove the green power supply terminal - Place the microswitch for the 'secure lock' function located on the back of the Home + Security video unit in the correct position - Replace the green power supply terminal - Replace the videophone on the wall bracket This operation must be carried out by an authorized person.