Better Dual Loop
An unofficial firmware mod for the NUX Dual Loop Stereo (NML-3DLS) looper pedal.
- Custom firmware
- Alpha
- Medium brick risk
- Reversible
Source codeWebsite: aisus.github.io
This project hasn't been claimed by its maintainer yet, so its details come from the community. Is it yours? Claim it
First public release, for official firmware V2.2.0.
- MODS page in the settings menu, after RESET, with two switches, both off by default:
- DRUMS ON STOP: stopping a loop no longer stops the drum machine; only DRUM ON/OFF does.
- INHERIT DRUMS: in A/B mode, a loop not recorded yet takes over the drums' on/off.
- The release is shown on the boot screen and in the MODS page's title bar.
- Browser page: drop the official NUX zip or
.bin, get the modded zip or.binback.
Patch the firmware in your browser
| File | SHA-256 |
|---|---|
Input: official NML-3DLSFirmwareV2.2.0.bin | 996a3fe71687ed85ba7b50e7484efcad4b3fc7d7208bb33d60509933ea3e94fa |
Output: NML-3DLS-V2.2.0-MOD1.0.bin | 7dda5083d8cd7ca00885bc4b1e835b06015981fc7c647bdbadcf4ef95054b283 |
Mods code: mods.bin, built from mods/ | e93cfddf88f1debb62dbc0eb8898e771e56b8b2b299b9a739e01600b956d6e2b |
Before you start
- How hard is it?
- EasyCopy a file or use a web page. No extra software.
- What you need
- A USB or MIDI cable
- Comfort with the command line
- A computer
- Can it break my device?
- Small chance of trouble, with a way to recover.
- Can I undo it?
- Yes. You can go back to the official software.
Did it work for you?
Did Better Dual Loop V2.2.0-MOD1.0 work on your NUX Dual Loop?
No reports yet for V2.2.0-MOD1.0.
One-tap reports from owners. Bricked reports are checked before they count.
Compatibility
Devices: NUX Dual Loop.
No compatibility information yet.
Getting started
From the project's README ("Using it"):
- Download firmware V2.2.0 from NUX's website and keep the zip: this release modifies only V2.2.0.
- Open the page, drop the zip on it and download the result.
- Flash it with NUX's updater, as described on the page: it is the standard update procedure from NUX's firmware update guide.
To go back, flash NML-3DLSFirmwareV2.2.0.bin from the NUX zip the same way. Your loops, settings and boot GIF are kept either way.
The page accepts only the official V2.2.0 image and produces only the exact image that was tested on the pedal, both checked by SHA-256. Your file is processed in your browser and never leaves your computer. Flashing was tested on Windows. NUX's macOS updater should work the same way but is not tested. NUX has no updater for Linux.
Risk and recovery
- Brick risk
- Medium
- Reversible
- Yes
- Requires opening the device
- No
From the project's README ("Using it"):
- Download firmware V2.2.0 from NUX's website and keep the zip: this release modifies only V2.2.0.
- Open the page, drop the zip on it and download the result.
- Flash it with NUX's updater, as described on the page: it is the standard update procedure from NUX's firmware update guide.
To go back, flash NML-3DLSFirmwareV2.2.0.bin from the NUX zip the same way. Your loops, settings and boot GIF are kept either way.
The page accepts only the official V2.2.0 image and produces only the exact image that was tested on the pedal, both checked by SHA-256. Your file is processed in your browser and never leaves your computer. Flashing was tested on Windows. NUX's macOS updater should work the same way but is not tested. NUX has no updater for Linux.
Releases
| Version | Name | Released |
|---|---|---|
| V2.2.0-MOD1.0 | —Latest | 21 October 2026 |
Credits, license and support
- License
- MIT