Mii Data Injection / Modification

Article via Liquid Ice

I was playing around today with the Mii data that is found in the wii-mote. There are 2 blocks of Mii Data, but we're not sure if it alternates between the two, or if it uses both. The data is a hash, so it's not as simple as changing the hex bits to change the look of your Mii. There is a way to update the CRC on the data and it's being investigated now. Here is some Mii Data from the WiiBrew Wiki thanks to Marcan and other hackers on IRC EFnet #wiidev:

I have been testing these codes using Simple HID Write. It's some sample program for Delphi programmers, but until someone else writes a more specific app for doing this stuff, it works. You can download it from here if you want to check out what your Wiimote's Mii data looks like.

To read Mii Data block 1:
Report ID: 17
Command: 00 0F CA 02 EF

To read Mii Data block 2:
Report ID: 17
Command: 00 12 BA 02 EF

Info for writing the data block is here:
http://www.ch0p.com/wiiki/index.php?...ng_and_Writing

Can someone put together a quick app that will read and write data from the wiimote mii data storage to a file on the computer? Big Red Pimp posted this Wii-Mote Test app which is close, but still does not fully support Mii Data.

Next step: figure out how to rewrite the hash to make our own mii with the info here, but this comes much later, for now it would be neat to be able to trade mii data block with other wii hackers as an easy way to bus multiple wii's around to other wii consoles without messing with friend codes and emails.