Like said I would try another coil. Your local vape shop or your friend should have an extra coil to try. If its not the coil then its the 510 pin. Unfortunately the Aliens do not have a conventional 510, it is actually a floating pin on a spring and it can't be fixed by prying it up, in fact that may dislodge the spring. Trust me I know from dismantling one of my broken ones. If this one is toast, shop around, I bought my cousin a brand new Pico with tank for under $30 on ebay. The baby beast tanks work great on the Pico. If you are determined to have an Alien, they are under $50 at most places online.