Using a Chromecast device without Wi-Fi

[Rvharold]

I have a Motorola Moto stylus g phone. I am going to be traveling in an rv, no Wi-Fi, and I want to be able to mirror my phone to my tv. I was told that a Chromecast device could do this, in guest mode. Has anybody ever done this? Is this true? Does anybody have any expertise on this matter?

[David_K · Accepted solution]

Guest mode was discontinued several months ago now. Even then, it still required the Chromecast to be connected to Wi-Fi so couldn't have helped you in this use case unfortunately. 

Chromecast always requires Wi-Fi and an internet connection to function.