I had a temperature related issue with my Echo Dot last summer. It was with heat. I have an Echo Dot in the car that's connected to my car's hot spot. During the day, if I parked outdoors, the temperature in the car could exceed 120F. When that happens, the Echo Dot will not work. It would look like it's booting up and right before it finishes, it restarts the cycle again. It does this continuously. When the temperature cools down a bit, then it works as usual. I talked to Amazon about this and they basically said that the Dot must be used within the temperature specs and offered no other solutions. They were designed to be used indoors. They were never meant to be used under extreme temperatures.