For our protagonist, let's call him "NintendoNut23," this error code was about to ruin his Saturday afternoon. NintendoNut23 had just downloaded a shiny new CIA file for his 3DS, a highly sought-after game that he had been waiting months for. Excited to dive into the game, he booted up his console, navigated to the Homebrew Launcher, and selected the option to install the CIA file.