I've been lurking these forums for a good number of years, but never registered. I have a very likely solution to a problem being experienced by some members here, but I can't post it in their threads due to no post count. So I guess I will do it here in hopes they find it.
In short, the problem is with the VAMO (or whatever other names it goes by) and quite likely, mainly the SS version. The unit will quite suddenly stop making the normal "rattlesnake" sound, get warm at the top of the battery, exhibit short battery life and poor hits. The dreaded "02" error and shutdowns will follow, especially when using a low-resistance atomizer, if not already occurring.
I was having these same issue with my SS version.
So I went on a search for the problem, but no real concrete causes or solutions could be found. But I did eventually find a suggestion from a member on another forum who posted a hunch as to what the issue could be in response to another individual, and I decided to try it
He suggested flexing the unit right at the upper press fit joint under the button, to try to get the metal to rub a bit back an forth to ensure positive contact. So, basically having little to lose at this point, I gave my VAMO a good flex and it rocked only a tiny bit. I turned it over and did it again. It moved quite bit more and made a metal against metal sort of "pop". I fired it up and it's vaping like new. No heat, no errors, the rattlesnake sound is back, and it vapes like crazy. Obviously, the heat was due to a high-resistance connection at the press fit, which draws more current than it should, creating heat and indicating to the safety sensor that something is wrong. "02" error and shutdown is the result.
I have seen complaints where the unit would error out (or not work at all) unless the bottom section was removed and used with the shorter battery. Sounds like the same type of issue, but at the threaded connection.
So it looks to me like there is some drawback to this type of design, perhaps mainly with the SS version. Brass is softer and may prove to maintain better connections at the body joints.
I'm starting to think that a tiny amount of electrically conductive grease, like that used on household electrical connections, at the press-fit and threaded connections of the SS VAMO unit would be a good idea.
Hope this helps someone.
TT
In short, the problem is with the VAMO (or whatever other names it goes by) and quite likely, mainly the SS version. The unit will quite suddenly stop making the normal "rattlesnake" sound, get warm at the top of the battery, exhibit short battery life and poor hits. The dreaded "02" error and shutdowns will follow, especially when using a low-resistance atomizer, if not already occurring.
I was having these same issue with my SS version.
So I went on a search for the problem, but no real concrete causes or solutions could be found. But I did eventually find a suggestion from a member on another forum who posted a hunch as to what the issue could be in response to another individual, and I decided to try it
He suggested flexing the unit right at the upper press fit joint under the button, to try to get the metal to rub a bit back an forth to ensure positive contact. So, basically having little to lose at this point, I gave my VAMO a good flex and it rocked only a tiny bit. I turned it over and did it again. It moved quite bit more and made a metal against metal sort of "pop". I fired it up and it's vaping like new. No heat, no errors, the rattlesnake sound is back, and it vapes like crazy. Obviously, the heat was due to a high-resistance connection at the press fit, which draws more current than it should, creating heat and indicating to the safety sensor that something is wrong. "02" error and shutdown is the result.
I have seen complaints where the unit would error out (or not work at all) unless the bottom section was removed and used with the shorter battery. Sounds like the same type of issue, but at the threaded connection.
So it looks to me like there is some drawback to this type of design, perhaps mainly with the SS version. Brass is softer and may prove to maintain better connections at the body joints.
I'm starting to think that a tiny amount of electrically conductive grease, like that used on household electrical connections, at the press-fit and threaded connections of the SS VAMO unit would be a good idea.
Hope this helps someone.

TT