ns2jb Brings AI-Assisted Jailbreak to Nintendo Switch 2
Developer Sammy Hajhamid publicly released ns2jb, a software-only tethered jailbreak for Nintendo Switch 2 firmware 23.0.1. According to The Verge and TechSpot, OpenAI Codex helped with the jailbreak research and was used to code a Mario Kart World mod featuring non-Nintendo playable characters. The exploit can run homebrew, support game modding and reverse engineering, back up save files and access most peripherals, but it requires a computer and must be rerun after each reboot. Reports differ on whether SmileBASIC 4 is strictly required, and describe the process as complex with its overall impact unclear.
The release is a reported example of AI-assisted reverse-engineering in console security research. Its immediate significance remains limited by the technical complexity, the need for a computer and possible dependence on SmileBASIC 4, while the full impact is not yet clear.
ns2jb is a software-only jailbreak of the switch 2 for the current latest firmware 23.0.1
Introduction
You can get a copy of the exploit from the ns2jb repository.
ns2jb is a software-only, tethered jailbreak for the Switch 2. It allows running arbitrary native code as any ordinary sysmodule, and as the built-in fs sysmodule. This lets us run homebrew, reverse engineer and mod Switch 2 games, back up save files off the Switch, and access most of the Switch 2’s peripherals through MMIO. To my knowledge, it’s the first such exploit for the Switch 2.
To demonstrate the capabilities of this jailbreak, Codex modded a Switch 2 exclusive, Mario Kart World. Thanks to my friends in Dabney House who helped me choose characters to add and playtest the game.
cinnamoroll, red, and tole tole racing
#ns2jb#Nintendo Switch 2#OpenAI Codex#Sammy Hajhamid#Mario Kart World#SmileBASIC 4