I got it from 3fvape.com in China
Just saw your post. Hopefully you got it figured out, but just wanted to share that the same thing happened to my flask from 3fvape. After 2 weeks it started auto firing and than wouldn't recognize atomizer resistance. Had to jump
through hoops with the 3fvape support, but eventually, after 3 weeks of .....ing, they sent me a new one. Haven't had any problems with it yet, but the 510 on it is sticking out quite a bit and it's crooked as hell. So I haven't been using it much lately. Just ordered a fat daddy so hopefully I can replace the 510 and put it back into my
vaping rotation.