The first Switch 2 jailbreak has been stopped less than three weeks after its public debut. Nintendo’s system update 23.5.0, released on November 10, 2026, closes the operating system vulnerability that allowed researchers to access parts of the console normally kept out of reach.
However, the most important difference lies in how Nintendo managed to respond. Unlike the original Switch, whose major security weakness was rooted in hardware, this new vulnerability could be addressed through a software update.
Switch 2 jailbreak loses access after firmware 23.5.0
According to developer and dataminer OatmealDome, Nintendo’s latest firmware patches the operating system flaw exploited by ns2jb. As a result, dumping and modifying games is no longer possible through the previously available method.
There is one limited exception. Some cartridge games released in the near future, and potentially certain updates, could still be exceptions. Nevertheless, the broader access previously demonstrated through the exploit has effectively been shut down.
As reported by Kotaku’s coverage of the security update, Nintendo has not publicly commented on the closure of this vulnerability.
Interestingly, the same firmware also introduces a feature unrelated to console security. Update 23.5.0 enables digital game gifting between members of Nintendo eShop family groups, bringing a new purchasing option alongside the security changes.
How SmileBASIC 4 became the entry point
The story began on October 22, 2026, when a security researcher released ns2jb, the first publicly available jailbreak for Nintendo Switch 2. It worked on firmware 23.0.1 and, notably, required no additional hardware or modchip.
Instead, the vulnerability involved the Switch version of SmileBASIC 4, a programming tool running on Nintendo’s newer console through backward compatibility. The flaw provided a software-only entry point, making this discovery different from hardware-based approaches.
However, ns2jb had an important limitation from the beginning. It was a tethered jailbreak, meaning its effects disappeared whenever the console restarted. Consequently, it offered no permanent custom firmware, and access had to be re-established after every shutdown.
Following the discovery, Nintendo removed SmileBASIC 4 from the eShop without providing an additional explanation. The removal was also covered by The Loadout in its report on ns2jb and SmileBASIC 4.
Despite those restrictions, progress came quickly. By around October 26, Kotaku reported that dumping games and exploring the console’s file systems had already become possible.
Why Nintendo could stop this Switch 2 jailbreak
The distinction between the two console generations explains why Nintendo could respond so differently this time.
On the original Nintendo Switch, the major vulnerability was located in the hardware itself. That meant a conventional operating system update could not eliminate the underlying problem. Nintendo ultimately had to change how the console was manufactured to address the weakness.
With Switch 2, the situation was different. The vulnerability exploited by ns2jb was software-based, allowing Nintendo to close the affected operating system flaw through firmware 23.5.0.
Therefore, this was not simply a matter of removing the application associated with the exploit. The latest update addresses the underlying software weakness, preventing the previously demonstrated method from continuing to work on updated systems.
The distinction also highlights why the first Switch 2 jailbreak did not create the same lasting hardware problem that Nintendo faced with its previous console.
What happens to ns2jb after Nintendo’s security patch?
For now, the immediate result is clear: firmware 23.5.0 blocks the operating system vulnerability used by ns2jb. The previously demonstrated game dumping and modification capabilities are no longer available through that method, apart from the limited near-future cartridge exception described by OatmealDome.
Moreover, the discovery’s short lifespan is notable. The jailbreak appeared on October 22, demonstrated additional capabilities within days, and was addressed by a system update on November 10.
Nintendo has offered no public statement about the patch. Therefore, there is no official explanation beyond the reported technical effect of the firmware change.
Security updates targeting jailbreak vulnerabilities are not exclusive to Nintendo. Sony has also released PS5 system updates aimed at preventing jailbreaks, illustrating how console manufacturers use firmware revisions to address software security weaknesses.
For Switch 2, however, the key difference remains the nature of the original flaw. Because ns2jb relied on software rather than an unchangeable hardware weakness, Nintendo could close its entry point without redesigning the console.
The first Switch 2 jailbreak has therefore reached a significant stopping point. While the limited exception involving upcoming cartridge releases remains, update 23.5.0 has ended the broader access demonstrated during ns2jb’s brief initial run.
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