I installed the latest Nest Thermostat model Thermostat-1.4. I use the Google Home App (I can't find what version) on my ipad running ipados 15.1 to setup the thermostat and it's working fine. I want to add a Nest x Yale lock, so I have to install a Nest Connect. I couldn't find any place in the Google Home app to add a Nest Connect, so had to install the Nest App version 184.108.40.206 on my ipad. Using the Nest App, I go to Add Product and scan the QR code on the back of the Nest Connect. I get a screen where it's searching for an "assisting Nest product", but after a few seconds I get an error "The app is having trouble connecting to the assisting Nest product". The only product I can think of is the Nest Thermostat I just installed. I tried putting the Connect directly under the thermostat and got the same result. There's a blue light on the Connect and a button on the bottom. Do I have to hold the button down during this process?