Probably a dumb question—but does anyone know if your cell phone can be tracked when it’s turned off?
no. Just turn it off. No energy from battery no signal.
A myth I have heard is that if you place your cellphone in a mylar type of a bag it will not receive or transmit.
One could try it with a resealable baggie that you have several layers of a space blanket wrapped around it.
I’m surprised there isn’t a market for a portable cell blocking travel case, I know I want to make my own.