It’s definitely possible. It may be using specific hardware to do the powered off tasks. Or it never be truly off, a small os running to managing these powered off tasks.
The second is more likely, it’s cheaper and easier. It can also be applied to older devices and requires less integrated design.
I also couldn’t find a mention, and it definitely does not make sense (and likely isn’t even possible) to run Bluetooth without Android itself running
Maybe this line is being misinterpreted?
It’s definitely possible. It may be using specific hardware to do the powered off tasks. Or it never be truly off, a small os running to managing these powered off tasks.
The second is more likely, it’s cheaper and easier. It can also be applied to older devices and requires less integrated design.