I am having a problem with replacement heads for my Mini Vivi Nova, which I think is an authentic Vision.
Having tried a few of them, most simply don't work (won't fire at all). I went in to my local e-cig store and the guy there was at a loss, but after much messing around trying to narrow down the problem, I have come to the conclusion that not all of the heads are compatible with my Mini Nova.
I have posted below a photo showing one that doesn't work, on the left, and one that does, on the right (they are now missing the wick and rubber head but they were attached when I tried them) . The one on the left is flat at the bottom, meaning, I suspect, it is not making contact with the battery, while the one on the right has a slightly longer rounded bottom and fires succesfully when connected to my Mini Vivi Nova.
So my question is:
(1) Is it *supposed* to be the case that the one on the left doesn't work with my device? (I bought one of these online and one from the store and in both cases they were described as working with the Mini)
(2) Is there something I can do to fix my Mini Nova so the head on the left does work?
Thanks!

Having tried a few of them, most simply don't work (won't fire at all). I went in to my local e-cig store and the guy there was at a loss, but after much messing around trying to narrow down the problem, I have come to the conclusion that not all of the heads are compatible with my Mini Nova.
I have posted below a photo showing one that doesn't work, on the left, and one that does, on the right (they are now missing the wick and rubber head but they were attached when I tried them) . The one on the left is flat at the bottom, meaning, I suspect, it is not making contact with the battery, while the one on the right has a slightly longer rounded bottom and fires succesfully when connected to my Mini Vivi Nova.
So my question is:
(1) Is it *supposed* to be the case that the one on the left doesn't work with my device? (I bought one of these online and one from the store and in both cases they were described as working with the Mini)
(2) Is there something I can do to fix my Mini Nova so the head on the left does work?
Thanks!
