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Does Chromecast need an internet connection?
Q
In Issue 697 (page 67) you helped William Robertson with a question about casting photos to a TV. He seemed to be asking about using the TV as an external screen for a smartphone. In your answer you mentioned Chromecast, which I believe needs an internet connection. Can you confirm this? Also, will the same method work for an iPhone or does this need different hardware?
Martyn Sandford
A phone to a smart TV that has Chromecast support built in, or to an external Chromecast device connected to the TV’s HDMI socket. Both your phone and your TV or Chromecast must be connected to the same Wi-Fi network, but you should be able to cast photos even if you don’t have an internet connection.