Elektron Octatrack MKII (Octatrack MK 2) firmware 1.40C

Latest firmware: 1.40C

1.40Creleased 27 Mar 2025

What's new in 1.40C

Octatrack OS 1.40 comes crammed with new features such as Parameter Randomization, Tempo Per Pattern, MIDI Trig Modes, Parameter Locking Multiple Trigs simultaneously, Trig Preview, additional performance improvements, and much more. Octatrack OS 1.40C adds support for updated production process. For a full list of changes, see the release notes.

Last checked 11 Sep 2026

Download 1.40C from Elektronopens in a new tab — elektron.se

How to update the Elektron Octatrack MKII

Two upgrade methods. .BIN via USB+CF card (preferred): on the Octatrack, navigate to SYSTEM → USB DISK MODE and press [ENTER/YES]; copy the .bin OS file to the root of the Compact Flash card; unmount, then navigate to SYSTEM → OS UPGRADE and press [ENTER/YES]. SYSEX via MIDI (alternative): connect the Octatrack MIDI IN to a computer MIDI interface (the USB port cannot transmit the OS); send the .syx file using Elektron Transfer or any sysex-capable tool. Do not power off the unit during the final bootstrap stage.

What you need

Elektron Transfer — the software Elektron uses to load firmware onto the Elektron Octatrack MKII. 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 Elektron Octatrack MKII

The Elektron Octatrack MKII is updated with Elektron Transfer, published by Elektron.

Download Elektron Transfer from Elektronopens in a new tab — elektron.se

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Elektron Octatrack MKII firmware update history

Changelogs summarised from the manufacturer's release notes.

1.40C27 Mar 2025

Release notes for this version are listed above.

Release notesopens in a new tab — elektron.se

Elektron Octatrack MKII manual & official pages

Elektron Octatrack MKII user manual (PDF)opens in a new tab — elektron.se
Elektron Octatrack MKII on elektron.seopens in a new tab — elektron.se
Download Elektron Octatrack MKII firmware from Elektronopens in a new tab — elektron.se

Elektron Octatrack MKII firmware FAQ

What is the latest firmware for the Elektron Octatrack MKII?

The latest firmware for the Elektron Octatrack MKII is version 1.40C, released on 27 Mar 2025. FW//RADAR last checked Elektron's official page on 11 Sep 2026.

How do I update the Elektron Octatrack MKII?

Two upgrade methods. .BIN via USB+CF card (preferred): on the Octatrack, navigate to SYSTEM → USB DISK MODE and press [ENTER/YES]; copy the .bin OS file to the root of the Compact Flash card; unmount, then navigate to SYSTEM → OS UPGRADE and press [ENTER/YES]. Full instructions on Elektron's official firmware page.

What software do I need to update the Elektron Octatrack MKII?

You need Elektron Transfer, available from elektron.se.

Where can I download Elektron Octatrack MKII firmware and drivers?

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

Where can I find the Elektron Octatrack MKII manual?

The official Elektron user manual is a PDF hosted on elektron.se. Elektron Octatrack MKII user manual (PDF) →

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