FAQ How to unlock? Use correct code, it should flash green If red then code is wrong and if you forget, then go Inside and find variants, you should find correct code, now click show and correct code will be reviewed. How to change code? First: press *# and it should flash green and red Then: you have to enter the current code, When it flashes 2 green, then you are in program mode, To change it press * then type new code and press # if should flash 10 green, to exit, make sure the code is not inputted then click *, then test the new code, if should flash green, and last test the old code, it should not work, and you’re done security lockout: if 3 incorrect attempts are made then lockout for 30 second will be activated, if 6: then 1 min. 5 min if 7, 15 min if 8, 1 hour, if 9. if incorrect 10 or more then it will enter permanent lockout mode until you click see inside and find not correct attempts, then click, it should reset to 0 how to hide display code? make sure you are in program mode and code is blank. then press the # to enable hidden code, and repeat to disable.