Since the latest firmware update (maybe the one before) I do not get any Calibration Notifications anymore when riding with my Vector3. I see power sensor 999999 found in the screen. but to calibrate I have to manually go into the sensors section, select the pedals and select calibrate.
I used to get automatic notifications to calibrate without problems up until a couple of weeks ago. The setting for calibration notifications is switched on.
I also think I do not get any Low Power notifications for the battery status anymore, but as I should get these only once every 30 rides or so I cannot tell wether this is true.