Need to reset the system my teenager son reset it & now its inaccessible fr keypad use to set alert on screen states its invalid number each time no master number to put in & have set keypad siren off now several times please Help so I can re.set my system.
Had a good look in my crystal ball, but was unable to find what system you are on about. Repost, but give us a clue next time, after all, we are not all mind readers.
