Hi guys and gals. So I got a Mini Lambo 4.0 today that I have been waiting for all week. So I fired it up, put a ViVi Nova on it (which is basically all I use) and it wont fire. did the five clicks of he fire button to check the ohms of the ViVi (which is 2.8) and all I get on the screen is "F1". So I thought ok, ill try one of my Kanger T2s and see if it works, and it did. So then I attached the other T2 that I have because it has a different flavor and....."F1" again! Is it broken?