Please note: Guest mode can be set up (or turned on) on any device that supports the Google Home app. Guest mode can be used for casting as a guest on Android 4.3+ or iOS8 devices.
I cant see the guest mode PIN on the Chromecast’s backdrop
I see the PIN on the Chromecast backdrop, but the Cast icon does not show in Google Cast-enabled applications when nearby
Automatic pairing for guest mode using audio tones did not work
I hear audible clicks when devices connect to my Chromecast in guest mode