I had 4.1U. Today I wanted to update, so I did. During 1/3 of the way of the upgrade, the Wii all of sudden turned to this screen (see image), and from now on whenever I turn on my Wii, it will show this as start-up. Is my Wii bricked? How can I boot back to the Wii? and is it possible to update beyond 4.1U?