I Even have Solos. If I loosen the tank, push the fire button to have the no atomizer information, switch the mod off, tighten the tank, and turn the mod back again on, I get that message. I just did that and it said Old Coil 0. The drip suggestion https://geekvapeh4557777.wiki-jp.com/1104917/5_simple_statements_about_geekvape_explained