How to factory reset indoor cam?

I've got exactly the same problem as described in this topic: [https://community.ring.com/t5/Security-Cams/Indoor-Cam-won-t-enter-setup-mode/m-p/17383](https://community.ring.com/t5/Security-Cams/Indoor-Cam-won-t-enter-setup-mode/m-p/17383) After setup of the camera it worked like it should for like five minutes. Then it's been offline. I've tried everything I can think of and is getting instructed to but nothing works. Is there any way I can do a factory reset? Or is there another solution? The topic refered to seems unsolved.