Nintendo panicked. Then, they reacted. Starting in mid-2018, they began shipping consoles with a . The Tegra X1’s boot ROM was physically altered to close the Fusée Gelée hole. These new units were labeled “patched.”

You see the hope in their eyes. They just bought a used Switch for $180. They saw a YouTube video about running Android on the Switch. They dreamed of emulators, save backups, and custom themes. They flip the console over. They type XKJ1 into the search bar.

Having an XKJ1 serial number means you cannot use the exploit. That is true. You will never launch Hekate (the custom bootloader) by simply shorting pin 10.

But why the confusion? Why does every newbie still ask about XKJ1?