I have been using my Evic VTC Mini for 9 months now and have never had any issues up until this point. I have always used nickel coils but only had titanium left on hand so that is what I have in there now. Since I put in and primed my new coil it no longer allows me to use the temp control. I have to use it on the power setting which makes me nervous when using titanium. When I try to use temp control it immediately gives me the "temperature protection" error. I have tried just about everything I can think of! Adjusting the temp, changing the coil (yes I do unlock and relock the resistance every time). I also tried updated the software through Joyetech and it won't allow me to do it. The software doesn't recognize my device. I am completely out of options unless anyone has any more advice. Anything would be appreciated! I am not super knowledgeable about this things. I only know basics!