[ChipD] successfully installed two NAND flash chips into his Wii. He can keep the stock firmware on one and then flip a switch if he wants to boot using the other chip with a modified firmware.

There are reports that some Nintendo Wii U systems out in the wild are falling victim to mysterious failures. As is so often the case, certain error codes have been ...

One of them involves using a Raspberry Pi Pico microcontroller to exploit the Wii U's USB host stack, but this one doesn't seem to work for absolutely everyone. There's also a NAND recovery kit ...