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Hi there, my wife messed up the ADT Galaxy (8 or 16) alarm in our place and I don't have the engineer-master code. It now says to call AlarmCo (ADT) quoting code 81124. ADT would charge £200+ for the intervention and I'm happy to get quote from anyone else knowledgable with such matter. Just...

Tried again with ADT and they say they deleted all my customer information and don't have any engineer code available (later saying I can book a £225 intervention for 30' of work). These are the 3 manuals I got online: no one has page 18 (!) https://apps.memopal.com/e/JYM34WBRU6. This is the...

any hint on what is the process to do a factory reset?

The reset codes that have been named here don't work - I always get "INVALID CODE". If I try with my user code, I get into the menu, pressing esc and esc will get me to the "Call Alarm Co" msg If I try with 1234 it says invalid code If I try with 112233 it says invalid code

Hey there, I know this is an old thread and I should prob create a new one, but I'm having issues with my ADT Galaxy 8+/16+. My wife (same old story...) wasn't able to stop the alarm; system now says "Contact AlarmCo quoting 81124 code". I downloaded/read 3 manuals, but it seems there's no way...