Brewology

I just started it up today and it goes to the channels for 1 second and then goes to a black screen that says: "system data corrupted" It keeps doing that.

I didn't do anything wrong, it just happened today for no apparent reason. I have a wiikey installed.

Someone please help, or give me something

Sounds like there's a defect... Fortunately this sounds like something Nintendo will be willing to fix. Unfortunately you have a Wiikey installed, so you might have to pay some money to get it fixed. I think it might cost somewhere around $50 or so... My recommendation would be to contact Nintendo about the problem, and take the Wiikey out before you send it to them for repair.

WIIIIIIIIII

I've heard about this but don't know if its true, has your Wii had the yellow light on the whole time?

I've yet to heard about someone's Wii breaking due to overheating from it but
the reason why because the system is in standby mode and WiiConnect24
is still on without a fan. When you hold it down it turns red, the whole system is off along with WC24.

Red Light = Off

Yellow = Standby/Wiiconnect24

Green= On

There have been some people who's Wii have been messed up graphically because of heat... but i haven't heard of a Wii breaking from it before. Some people have gotten black pixels at random locations around the screen when heat build up has affected their systems.