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This happened to me too. Said iIneeded to update wifi to use navi wtf... so i did soft reset... lost all my profile/homellink etc.. Surprisenly it allowed me to use navigation though...myy lifetime tracker!!
I got huge phantom drain one day after supercharging overnight and then rest of days not big %. It was like 20miles /6-7 drain in 50+ covered garage. Anyhow what I believe is it was overestimated or calibrating the battery.