We could not set this up properly. Maybe we had instructions for a commercial installation or something because it was far too technical for both my wife and myself. We popped it off, and put the T5 back on. I really didn't see why it was an upgrade anyway. They seemed to have the same functions.
This is the second replacement thermostat that we have had to replace in the last 2 years. We have 4 thermostats in our newly built house, first one went out last year, and this is the second one to go out that needed replacement. I do admit that tech support is very helpful and I do like that I can control and view the them on my smart phone.