I do not have the computer I used in front of me but I do remember that I had to download the newer version of software to connect. If you actually had the mod running with VB installed, then it is probably a VB. How old is it? I bought mine 2 months ago and it was a VB version. I remember that when I flashed it I chose the file I needed (there is really only one update program, you just chose the correct firmware i think) and then followed the check boxes on the SMOK website. I checked The flash, config, erase all at the same time and made sure that the watchdog was unchecked. I wish I could be more help but i am not in front of that computer right now. If you can get it to connect try again with config/data/erase all checked.