Complete reset of Lokus. WARNING, this also deletes all user cards and codes. Procedure: -approach master card to the Lokus -wait for 13 double beeps and remove master card (13 is function for setting Lokus back to factory settings) -in 3 seconds, after master card removal, approach any other card (confirmation of the function) -if it is successful, first longer funny beeeeeep is heard and then Lokus confirms it with two beeps -first card registered after reset is new master card