He leido esto. ¿Podéis comprobar si tenéis icono de bluethoot?.
Don't worry, you haven't lost your bluetooth-icon Grinning Face
Android Pie doesn't show the bluetooth-icon permanently anymore. Google wants to avoid cluttering the status bar with an icon noone really needs, especially in a time when many users have a smartwatch and the bluetooth-icon would be shown on the screen 24/7 for no reason.
You can see if bluetooth is on by pulling down the notification center, the bluetooth-icon should be highlighted.