winter is coming, KO2 is freeze
now temperature of outside is 2 or 3 °C in my city, this morning I read book on KO2 at train station,
suddenly KO2 touch screen do not has any response, it was frozen, train was coming, when I got on the train for five minutes
frozen screen of KO2 was recovered, I Realized low temperature caused KO2 screen problem, any KO2 user got same problem?