Moved to correct section - Made a bit of a mess of it and deleted WiiJohn's welcome post by accident.
It's amazing how many people have power failures when updating their Wiis.
What you have now is a fully bricked Wii.
You may be able to enter recovery console and autoboot a retail New Super Mario Bros Wii game disc.
Use the savemiifrii method i.e. Gamecube controller modded to press all directions on D pad at the same time as you power up your Wii. Check youtube for savemiifrii.