I just got my new Model 3 last week and a new update is available. I live in an apartment building with no WiFi in the garage (and cellular is really spotty). I realize I need to hop onto a WiFi connection somewhere (or use a hotspot outside) to download the update, but what I am struggling to find is whether the car needs network connectivity to actually install the update. Searched around on the forums for a while but couldn't really find anything other than what connectivity is needed to download the update. (maybe my search-foo is bad ). I am asking so that I know whether I should park somewhere outside to install the update, or if it will happily do so in the garage after the download.