Here is a question from a Yocan UNI user:
Yocan uni just 2 weeks old glitchy. Store tour me to take warranty up with you. For 80 bucks I'm horribly dissapointed in this product. Says no atomizer 3/4 of the time
Sorry for the inconvenience.The UNI battery flashes 5 times, meaning it can't detect the cartridge.Please try to use a q-tip to clean the contact points. If you have another Yocan UNI adapter, oil cartridges, please install another one to have a try.
Any further question, please comment below.