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Hexinverter Électronique Mutant Brain firmware

Hexinverter Électronique active Device launched 2018
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Latest firmware

4.0
released 1 Aug 2018
Download firmware from hexinverter.net · needs MIDI SysEx
Updater
MIDI SysEx (MIDI-OX / SysEx Librarian)
Manual
User manual (PDF)

What's new in 4.0

Firmware v4.0 - STABLE (stock firmware as of 08.2018) This firmware is the stock firmware currently shipping on the Mutant Brain.

Last checked 27 Oct 2026

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Hexinverter Électronique Mutant Brain manual & official pages

How to update the Hexinverter Électronique Mutant Brain

Hold button while powering on to enter update mode (top 2 LEDs light solidly). Send .syx file via MIDI with ~100ms buffer delays. Upload takes 1-2 minutes; alternating rapid LED blinks signal completion. Power cycle after update, then re-load SysEx patch. Note: Erica Synths reissue uses different hardware and firmware — not compatible.

What you need

MIDI SysEx (MIDI-OX / SysEx Librarian) — the software Hexinverter Électronique uses to load firmware onto the Hexinverter Électronique Mutant Brain. Download links below.

Just for reference. For complete and up-to-date instructions, always refer to the manufacturer's official firmware page.

Drivers & software for the Hexinverter Électronique Mutant Brain

The Hexinverter Électronique Mutant Brain is updated with MIDI SysEx (MIDI-OX / SysEx Librarian), published by Hexinverter Électronique.

Download MIDI SysEx (MIDI-OX / SysEx Librarian) from Hexinverter Électroniqueopens in a new tab — hexinverter.net

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Hexinverter Électronique Mutant Brain firmware update history

Changelogs summarised from the manufacturer's release notes.

4.01 Aug 2018

Release notes for this version are listed above.

Release notesopens in a new tab — hexinverter.net

Hexinverter Électronique Mutant Brain firmware FAQ

What is the latest firmware for the Hexinverter Électronique Mutant Brain?

The latest firmware for the Hexinverter Électronique Mutant Brain is version 4.0, released on 1 Aug 2018. FW//RADAR last checked Hexinverter Électronique's official page on 27 Oct 2026.

How do I update the Hexinverter Électronique Mutant Brain?

Hold button while powering on to enter update mode (top 2 LEDs light solidly). Send .syx file via MIDI with ~100ms buffer delays. Full instructions on Hexinverter Électronique's official firmware page.

What software do I need to update the Hexinverter Électronique Mutant Brain?

You need MIDI SysEx (MIDI-OX / SysEx Librarian), available from Hexinverter Électronique's support site.

Where can I download Hexinverter Électronique Mutant Brain firmware and drivers?

Directly from Hexinverter Électronique's official firmware page — FW//RADAR links to the source and never hosts firmware files. Official firmware page →

Where can I find the Hexinverter Électronique Mutant Brain manual?

The official Hexinverter Électronique user manual is a PDF hosted on hexinverter.net. Hexinverter Électronique Mutant Brain user manual (PDF) →

Is the Hexinverter Électronique Mutant Brain still receiving firmware updates?

The last firmware release we recorded is 4.0 from 1 Aug 2018. FW//RADAR still checks Hexinverter Électronique's page daily.

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