Nexus3DS v0.4.1 by 2b-zipper
Luma3DS fork that gathers features from other forks, such as a plugin selector and a Play Coin setting
Install on your 3DS
This replaces your console's boot.firm. Back up the old one first. Take it only from a project you trust and read its release notes first.
Scan the QR code
With 3dsDL (Scan QR Code). Save it to sdmc:/ and choose Replace.
Other ways to install
boot.firm from your SD card: back up the old one, then copy the new one to the root of the card over it.
Files
| File | Size | SHA-256 | |
|---|---|---|---|
| boot.firm | 329 KB | a627c5c1…80d8 | Download |
Screenshots
About Nexus3DS
It's a boot.firm, so you need boot9strap. Its settings go in nexusconfig.ini, so they don't clash with a normal Luma3DS config.
The Rosalina menu gets a clock, a volume display and, on the New 3DS, the CPU clock and L2 status. You can set your Play Coin count and adjust brightness in finer steps. A Day/Night mode changes brightness and LEDs at a set time.
Plugins get a selector (hold Select while starting a game to bring it back after setting a default), v0.5.x 3GX loading, and a Plugin Watcher that asks before a plugin deletes files, connects to the network or uses the camera.
If your HOME button is broken, a key combo can stand in for it inside apps, and the Return to HOME Menu option can be shown or hidden. An instant reboot on A+B+X+Y+Start can be turned on in nexusconfig.ini, though the author warns it may corrupt your SD card.
CTGP-7 won't work with it, because its anti-cheat blocks Luma3DS forks. The author suggests Luma's FIRM payload chainloader or Fastboot3DS to switch between Nexus3DS and Luma3DS.
The Rosalina menu gets a clock, a volume display and, on the New 3DS, the CPU clock and L2 status. You can set your Play Coin count and adjust brightness in finer steps. A Day/Night mode changes brightness and LEDs at a set time.
Plugins get a selector (hold Select while starting a game to bring it back after setting a default), v0.5.x 3GX loading, and a Plugin Watcher that asks before a plugin deletes files, connects to the network or uses the camera.
If your HOME button is broken, a key combo can stand in for it inside apps, and the Return to HOME Menu option can be shown or hidden. An instant reboot on A+B+X+Y+Start can be turned on in nexusconfig.ini, though the author warns it may corrupt your SD card.
CTGP-7 won't work with it, because its anti-cheat blocks Luma3DS forks. The author suggests Luma's FIRM payload chainloader or Fastboot3DS to switch between Nexus3DS and Luma3DS.
Release notes
v0.4.1 · Nexus3DS v0.4.1 · Sep 7, 2026
What's new?
- Added support to load the new Sysplugins
.3nxfile format. This new system allows external code to attach directly onto Loader and Rosalina, extending the features of Nexus3DS. - Place any amount of
.3nxfiles in/luma/plugins/to dynamically load these. 'Load external FIRMs and modules' must be enabled for Sysplugins to take effect.<br>Check out the 3NX Documentation and Development Kit here boot.firmnow comes with a pair fileboot.3nr, this allows Sysplugins to repair themselves against the current Nexus3DS build.<br>This.3nrfile can be ignored if you do not intend to use Sysplugins.