Phone on the same Wi-Fi as the TV, and SHOFNY open on the TV.
First time only — allow your phone to talk to the TV:
1. Tap Open TV connection page below.
2. Safari says “This Connection Is Not Private”: tap Show Details → visit this website → Visit Website. You'll see a page of text — that's it.
2. Chrome says “Your connection is not private”: tap Advanced → Proceed to …. You'll see a page of text — that's it.
3. Come back here and tap Retry.
Open TV connection page