Updating your wii
"boot2 is basically the area that "starts up" the Wii.
According to the people who have developed HBC, the code for Nintendo's updated boot2 is prone to making write errors, therefore making the possibility of bricking your Wii extremely high, whether or not you have ever hacked or modified your Wii."Nintendo tech support is telling consumers with out-of-warranty consoles that the cost of repairs will have to come out of their pocket, however Nintendo officials have remained quiet in regards to the overall infliction caused by the update.
To actually upgrade, use the steps on the Upgrade page after reading this page. It's slightly harder to install homebrew on 4.3 than on earlier firmwares.
The company recently released the update to address those who were running the Homebrew Channel, a modification that enables users to load applications not sold by Nintendo.
Did this connection used to work but has suddenly stopped? To do this, unplug both the modem and the router from the power outlet. Wait a couple of minutes for the modem to initialize, then plug in the router.