Nothing OS 2.5.2 is finally here. First of all, thank you very much. I hope the problems described are not happening. (Battery problem, Screen problems, etc.) I would like to make a suggestion. How about you first give a date for the updates and send them to the whole world at the same time? This way, there is no need for criticism. Why do some problems occur when an update is made and additional features are introduced? Isn’t the aim to provide the best service? I was experiencing this at Apple too, but I don’t understand it.