I got this yesterday and love it. Unfortunately, and so far only once, the battery door popped open. GTRS is aware of it, they say they have a fix, but not sure if it's going to apply to current stock, and, we have no way of knowing if we are buying a fixed or non fixed version. Has anyone been able to fix this on their own, and, if so, exactly how did you fix it? This is not a deal breaker for me, it's my most advanced mod I have ever bought and I am very happy with it so far, but it would be great to have this issue solved. TIA and happy vaping!