I know this is pretty old, but I haven't seen a topic made on it as far as I could see. So has anyone tried this yet? And if they have does it work? If no one has though I intend to try it out myself for system knowledge purposes.
I read that, funny way to lay out the tale. At least you were prepared. Something happened to mine one time and it was BLACK, I was not good at soldering then so infectus was not an option. I needed to use a Walmart special. Your solution was a lot more, ah, ethical. That required some prayer and that I repented. NEVER again. My wife was ENRAGED and I deserved it.
For that, if the Wii U sees it and formats it, it likely can and will use it. I did not watch the vid but was responding to Joostin's post. I don't see the harm from what you said. It is not changing any software/ios, it should work if Wii U sees it/formats. I cannot speak to speed of SD card or how well it could work though. Worst case; give it a try, let us all know.
Yes, flash memory devices have a limited number of write cycles, but its so high that you're unlikely to actually wear them out with typical use before they get replaced with a bigger/faster version. I mean, really, just think how much wear and tear an SSD with Windows must go through. Also, Wii U games shouldn't be writing to the memory device they're stored on. They're designed to be run from discs, which are read-only.
This would have been a good find if the guy was using the SD card slot located in the front of the Wii U. Nintendo already stated that transferring games to the USB and playing the games from USB will work.