Hi all. A friend gave me an android tv box that they assure me was working fine. I've hooked it up to the power, via usb and 5v DC, and to the tv via hdmi. All I seem to get is four penguins in the top left of the tv, flashing on and off. I have tried a hard/factory reset, but it always comes back to the penguins! I have a remote, but that seems to have no effect - I even plugged a usb keyboard in, which allows me to navigate the menu in the hard reset screen, but nothing else. I'm new to these devices - I have an Apple TV but nothing android til now. My tv box looks like this 'un: Hoping someone can help. Thanks!!