so the negative connection around the floating 510 pin will eventually fall off because it's press fitted! Damn they had such a good product too. Here's a good video showing the problem: I know a lot of VU members recently bought this Mod. Just in case it happens to y'all this can be a good temporarily fixed until a solution from Wismec: https://www.amazon.com/Sciplus-Electrically-Conductive-Soldering-Wire/dp/B000Z9H7ZW It's not the best but it's conductive. Not like regular glue. Hope this helps!