HI, I am having the same problem with 2 of my sensors. We just changed the battery - it says ‘tampered’ for both but they seem to chirp when the doors are opened. Tried putting the cover vack on but that hasnt helped.
I have tried to remove one of them via the app, but it keeps saing ‘can’t remove’. So I am stuck with somehting thsts jjust sitting there showing tampered. Any help is appreciated.