Since the last service, less than a week ago the odometer has been flashing on and off must mostly now, on. The blue tooth connection has also been lost.
Try removing all memorysticks (if any are placed) and then try again.
Also lots of info here. Might be something else causing the problem but I had it in a Grande Punto once and removing memorystick did the trick. Afterwards all was fine. https://www.fiatforum.com/500/209435-flashing-odometer.html
Since the last service, less than a week ago the odometer has been flashing on and off must mostly now, on. The blue tooth connection has also been lost.