Could be it just needs a very hot bath....which is something I would do with a used mod anyway. While running the mod under hot water, you can work the button up and down....should make a difference.
And if you haven't already, watch this... mod maintenance - YouTube
Keep us posted.
And if you haven't already, watch this... mod maintenance - YouTube
Keep us posted.
I personally like to use the RM2 (Reomizer). Build my own micro coils. For ease of use and fill and go. (check battery and clean every week). It don't get more simple than a Super Shorty carto (1.7ohm) and a full bottle of juice and batteries. If you happen to burn a carto out, So simple to pull a shorty carto out of your pocket and replace, squonk and vape.