@ Jacob benson go to the bottom of my post and read that part for a quick answer.
Great topic. This is just what I needed to know! I dropped mine and it happened to fall right dead straight on the top of the atomizer and I happened to have an old mod, the tank worked still in-fact still works to this day, anyways the mag itself wouldn’t read any tank I put on it. It would read no atomizer for a while then after pulling it out months later it started reading random oHm’s like 3.4* 5.2* 1.6* all on the same atomizer. I took the thing apart just now after about a year of it being retired and the sotter (sorry my spelling is poor) is still intact from what it looks like. There seemed to be a little bit of corrosion around the top piece but I’m sure that’s just age it wasn’t bad. The only fix I could think of is trying to mess with the pin, and if that doesn’t work take the whole thing apart to re-sotter the wires.
P.S. the screw on the battery release button does come off like any other screw counter clockwise. However when I took mine out it had Lock-Tite ;also known as liquid anchor; on it (the blue or red stuff that you put on screws so they don’t come out with vibration or usage.