I also have Solos. If I loosen the tank, press the fire button to find the no atomizer concept, flip the mod off, tighten the tank, and switch the mod again on, I get that information. I just did that and it explained Outdated Coil 0. My guess would be https://britedirectory.com/listings13001554/considerations-to-know-about-geekvape-super-mesh