Hello, 

Just had an RMA product return.

The new product has arrived.

It connected to the network perfectly. 

Video working, chime working etc.

Then it asked for a upgrade which I started. 

Now I have the exact same issue I had with the last camera. 

Firmware version 1.2.1. Build50926 rel.64362n

Can the firmware be downgraded? 

Or do I bite the bullet and buy a different doorbell?

I should state that I've been using 3 different tapo devices for over 9 months with no issue.