You could try downloading Guarding Vision app. In the app you will find a setting for the type of chime you use. You should be able to log in with your EZviz account. The EZviz app you can still use. Alterbative: delete the db from your ezviz app and add it again with your ezviz account. You should be able to set the type of chime again, but only during setup.
Its the same thing, I wsas able to download and login using EZ VIZ credentials like you said, it was already on mechanical chime option.I tried changing it to back and again it wont work.
BTW who is the publisher of the Guarding Vision app?
I already have tried removing / deleting and resetting the DB1 and adding it again, what could be the issue???
The chime works on shorting the wires directly