I am having THE worst time connecting my smart life lights to google home. They all worked perfectly fine until I had to create a new "home" in google home and it won't work anymore.
I am able to sync my Smart Life account to google home and the devices all show in the app. However, they all show as offline but work greta in Smart Life app. Any ideas? I have tried EVERYTHING I could think of and nothing works. Tried deleting and installing both apps, reset all devices, unliked and linked again, nothing works!
It looks to me like you tried everything. I wish I had more to offer. I will just tell you what I would do, but I think you have already done it. Worth noting I don't have any "Smart Life" devices, but the principles are generally the same with other smart home brands.
Another thing to try...
You might be able to unlink Smart Life from Google using a browser rather than the app.
Whew....that was longer than I thought when I started. I hope it helps!