kaiHEN is out, a public homebrew enabler for Switch 2, with a risk of bricking the console
On November 13, 2026, developer kurumuz released kaiHEN, a homebrew enabler for Switch 2. According to the author, it is an environment for running fan-made programs and a “minimal custom firmware”: a change only in what is essential, enough for the console to open a homebrew menu and start those apps. The README says the project is still in development and may have bugs. Switch2Unlock has not tested this tool, and there is no recommended safe method.
@kurumuz · X · Nov 13, 2026
Context
The README says kaiHEN does not describe a new flaw: it is started from access tools already available on Switch 2. In practice, the entry points known today — SmileBASIC 4 and the physical Switch 1 Civilization VII cartridge — remain available only on consoles on firmware 23.0.1 or earlier, and anyone who has already updated to 23.5.0 cannot use them. Since November 12, an outdated Switch 2 connected to the internet also stops opening those two games; see the news on that block. According to the author, most Switch 1 homebrew can be adapted for Switch 2, and kaiHEN comes with a file manager. This is the public version of the enabler the same developer showed in tests on November 2 and 9; the moonlight-nx2 streaming app depends on it. There is a serious risk, highlighted in the README: kaiHEN allows full access to the system, including the internal memory, and a malicious homebrew program can write to it and permanently brick the console.