What does the bution by the MicroUSB port do?

[cammykool]

i tried pushing it pushing and holding it everything nothing happens...

cant figure it out...

 

[Chex313]

i tried pushing it pushing and holding it everything nothing happens...

cant figure it out...

Its similar to a pairing on BT. It tells devices that its ready to go. I don't believe its needed. Unless there is a problem with your device not detecting the Chromecast.

 

[cammykool]

i wonder if it can put it into a ootloader of sorts