When I plugged my Z1 to charger, and kept it idle, whn the screen got off, demo started, and automatically bluetooth and mobile data gets on. And brightness gets full
What should I do?
Welcome to Android Central! You mean it went into a demonstration mode, as if it were on display at a store? Where did you get the phone from? Was it a display model? Those often have a special demo ROM installed, so it may not be possible to turn that off.