This happened to me a few days ago too. I updated via ESCRIBE and it looked fine but after I disconnected my device, the screen shut off. I was like OMFG. However, I went on Lost Vapes website (http://lostvape.com/therion-166/) and at the bottom of the page there is a Firmeare Update (I know spellcheck but thats how it is on the website). When you open the file, there is a Therion166.ecig file. I used that and loaded it to my device and everything was back to normal. It was weird but it worked for me.