Wii U: Smealum showcases unsigned code execution (Coldboothax, redNAND, homebrew)
Yesterday, popular 3DS hacker Smealum shared some work in progress hacks for the Wii U, through a video.
In the Video, Smealum shows he is able to hack the console at boot, then install and run homebrews. Specifically, the video shows a homebrew running on the second screen of the console.
As others have mentioned below, the video shows some hardware mod attached to the Wii U. Smealum gave details earlier this week that this hardware mod was required to unbrick his console, and it is not related to the Wii U hack showcased here.
The hack, named coldboothax, lets Smealum execute a Custom Firmware on the console, named redNAND. From there he is able to run homebrews.
Smealum mentions that there is no plan to release this at the time being. This is just some work in progress that he is sharing. He credits plutoo, naehrwert, yellows8 and derrek for their work on this ongoing project. Most of them were involved in hacks that broke the security of the 3DS, and contributed to reveal some of the Wii U’s encryption keys a few weeks ago.
Hykem has confirmed that this is not related to his own ongoing effort to hack IOSU.
Source: Smealum on Twitter