Hello to all ! I have had an issue with my Itaste SVD since it was new. I push the fire button and it seems to have a mind of it's own. It just does what ever it wants ie; shut off, fire, not fire, turn on if it wants to after I push the button numerous times. So after searching the web on and off for quite some time I landed on Thailand vapes and the answer. Here we go kiddos: Battery out ! Push the fire button in with your thumb until you hear the click, now keeping the button pushed down and turn it. Put battery in and try firing it. If it fires every time then viola' you got it. You may have to do this once or twice until your button doesn't spin any more. Mine is working like a dream now. After nearly a year of aggrevation. The simple things confound us.