I Even have Solos. If I loosen the tank, press the fireplace button to find the no atomizer concept, change the mod off, tighten the tank, and switch the mod back on, I get that information. I just did that and it explained Old Coil 0. All I'll say is, https://geekvape-au35555.blgwiki.com/1099805/geekvape_h45_classic_for_dummies