I'm trying to install a smart thermostat. I have a Honeywell programmable thermostat now. However, I found that there's a wall plate in back of the back plate, and it's secured to the wall (not by screws) and I don't know how to remove it.
I tried to search on Google and YouTube, but I didn't find anyone who has the same problem. I'm guessing this is a non-typical setup?
Any idea about how to remove this wall plate?