Brand new Sony EX3 right out of the box. I spent maybe an hour going through the menus, setting them up. Then I white balanced, switched the lens from manual to auto, and the whole thing froze up.
Switching the camera to the Off position does not power the camera off.
After removing and reseating the battery and powering up, the camera powers up and freezes on the sony ex3 logo in the viewfinder. The camera will not power off by the switch, only removing the battery powers the camera off.
Putting the focus switch back to auto made no difference.
My boss (which is actually my wife) said "Don't even entertain the idea of a repair through Sony. Take the camera back right away to the store you bought it from and ask for another EX3."
The boss has spoken.
Perhaps the only other thing you could try before you do the above is to pull the memory battery (on the bottom of the camera) and then re-install and try another reboot. If that doesn't do it then take the camera back right away, because something is definitely amiss.