I got a notification this morning on my Nexus 6p informing me that the Android 7.0 Nougat update was ready to download and install on my phone. The troubling thing about this was the following text:
Future security updates may be downloaded and installed automatically, possibly using cellular data.
I don't want any updates to download and install over cellular, ever. I am very frugal on my data usage, and normally have cellular data turned off - I turn it on only when I specifically need it. The wording of the above text is just enough to make me wonder exactly to what lengths Android 7 is going to go to try to download security updates, and what control I am going to have over it, to the point that I'm not going to just allow it to perform this update without knowing more. However, so far at least documentation on this seems to be hard to come by.
Is it possible to disable security updates over cellular? I usually have a WiFi connection so it's not like I'm going for days with old software. If not, will there be some kind of warning so if I am on cellular at the time I can prevent it from downloading until I get to WiFi?
Will Android 7.0 Nougat turn on mobile data even when I have it off just so it can download updates, or is turning off cellular data sufficient to prevent it from doing so?