I requested a callback via contact page and got a phone call from their
customer service straight away. Luckily my Chromecast was still under a
warranty.
I was sent a replacement and I'm 100% positive it was a software issue
caused by a recent update from Google - once I had plugged in the new
Chromecast, it was the same black screen with a Google logo on it but
this time there was a progress bar that...