Well the way I usually do it is to unscrew the tank from the Pico. Press the fire button a couple of times. It will show "no atomizer". Then screw tank back on and press fire button again. It should ask you if it is a new coil. Just remember that you need to be in TC mode when you do that.Only when it ask me. Sometimes it will do it very fast, but not ask about the coil. Not sure how to force it to do that.