Apparently this was not how you remove the doorbell from its mount. What is the function of the ripped off ribbon cable? The doorbell is still showing signs of life.
I can't make out the cable info in the pic, but you might be able to find it on Ali Express or something. It looks like just a few screws to replace it.
Of course Google wants you to just buy a new one though.
A few chats with Alphabet customer support informed me that it's not user-replaceable without a pretty big risk of further damage, even if you want to go through the process of a full teardown.
It connects to the circuit board. Probably providing communication to and from the camera. Still showing signs of life? Well the battery is right there, so everything that is still connected to the power supply is powered.
The reason I've asked this question is that it still shows all signs of life. Still detecting motion, door bell presses, camera is still online, there is still sound, it still runs on the battery... The only thing it didn't do was charge via the cables in my wall (but that was the reason I tried taking it off in the first place so I can't say if that's because of that ribbon cable).
Lol, that's weird. I just assumed the camera bits were in the front seeing as how the ribbon went to it. Looking closer at the picture I see what I assume are the sensors and what not. Anyway beats me, I'd have to look at it and fiddle with it at this point. I've made too many assumptions already. My apologies for not providing anything useful. Have a good one, hope you figure it out!