Hi there, I’m, new to this. The previous vape I purchased was plug and play along with being my first vape purchase ever. It’s didn’t do anything for me. I bought another vape pen and cartridge from another company. I’m a little confused on how to get this going. I purchased the 99.9% Pure CBD Isolate 500mg - Vape Pen Starter Kit, along with 1 99.9% Pure CBD Isolate 500mg – Cartridge. Is there some kind of child lock deal going on here? Does something have to be unscrewed? I charged the unit, then screwed in a cartridge . I couldn’t draw a pull, I do understand how to change the voltage unit and turning the unit on via button presses. That all worked fine. How do I draw a pull. I apologize for my stupidity. A huge and sincere thank you to anyone who can offer me some insight on how to fire this thing up.