And let's get back to the issue. I've forwarded all the focusing/LCD screen problem becoz of over heating to our engineers to investigate before and we did some optimization to the inner structure, also about the lens. It would be no problem at all working in normal temperature. As I guess most of users got the Chinese version in this forum? (Because our official international version just available yesterday
https://www.amazon.com/gp/B01C89GCHU), you can try to contact the seller to refund or resend international one, but currently
only Geekbuying is the authorized one to sell international version from China (gearbest, banggood etc they are "illegal").