Tried to troubleshoot a Smart Thing Hub v.2. Called into support, which, while on hold, repeats the same message every 15 seconds. The tech tried to troubleshoot, then agreed to an RMA. I sent him the receipt and the model number picture via email. I then get another email saying that they also need a picture of the serial number, which I promptly sent. I never heard back from them after that and repeated emails requesting status. They are basically worthless. Do not expect follow up on RMA. I guess they really don't want to exchange products ("you bought it, now leave us alone"). I would give them no stars if I could