I'm using my old phone, s forgive my grammar and diction. I'm in the VA hospital for surgeries, have had 4, 2 to go, 6 more weeks to go, have been here 5 weeks. Bought a 901/808 3.7 v mod box early Sept., worked fine, always carefull not to let juice leak in religiosly carefull. Today, the lite changes from red to green, can suck all I want, no vapor comes out. What happened/what did I do? I'll respond when I can. Am in the Tucson Az. VA. Thanks all you detectives out there, I need to vape again!