I just got my 350 from element vape, I've bought quite a bit of gear from them and never had a problem. After unboxing and hooking upmy tfv8 it worked like a charm for a few hours until a demon possessed the damnmod. I was vaping and while it was in my hand it started to fire on its own, I had to quickly unscrew my atty and then it stopped. I did notice like a beeping sound; almost like an alarm of sorts before and while I was unscrewing the atty, and then I pulled thebatteries (just to clarify they were purple brand new imrens that I also bought with the mod). After I pulled the cells to check them I saw they were okay and put them back in. The mod started fine and could fire my atty. After that I noticed that when I remove the atty and push the fire button it doesn't say check atomizer like all other mods, butinstead when I push the button it acts like there is an atty, it reads just as if there was an atty on, and I repeat this happenswithout the tank on the mod. I also tried a different tank on it and it didn't ask if it was a new coil to reset the ohms. The mod fires fine and the wattage can be adjustednormally. It hasn't done the beeping and self firing anymore, but I'm concerned that itdoesn't recognize when there is no tankattached and you can just fire it, not that it does anything when you do but it meansthat safety feature is disabled. I hope we can get an update that fixes the issue.