The Wii Key was announced at the beginning of February 2007 and shipped at the end of the month.
It is one of many modchips available for the Wii by Nintendo and acts as a firmware replacement funneled through the debug serial port - tricking the DVD drive into believing that the backup is in fact legit, much like current Xbox 360 chips do.
In contrast to that, there are little to no complains about clones not working.
Also, an official software update that does not work with the clones has yet to be released.
Pal/US/Jap Burn the ISO file to a DVD (use a RW if you have one). You just need to press the RESET button a few times when asked.
It will, amongst other things, allow you to play backups of your Wii and Game Cube games (subject to certain limitations).
Like its current competitors, the Wii Key is installed onto the Wii's drive either by quicksolder or using six wires.
The chip can then be updated through the use of a Setup Disc which can be downloaded from the chip's website.
The Wiikey team has promised to release an updated version of the disc in the near future. For the moment there seems to be no problem updating to Nintendo's Wii firmware 4.2 (using the safe updater in case you use Homebrew apps/channels) if you have a Wiikey installed.
I am going to do the update, but my question is....
Do you update the wiikey 1.9s firmware the exact same way Wiikey 1.9g was done...???
Basically, a Wii Key is more commonly known as a “mod chip” for the Wii.
The Wii Key uses a method to hide itself from prying eyes.