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.
Bug fixes: A button press could in some cases be incorrectly registered as the press of another button. The Trig mode MIDI map was not read correctly when loading projects.
Version 1.40A — 17 Dec 2020
Bug fixes: The tempo of the previously played pattern could in some cases still be in use after a pattern change to a pattern with a different tempo, even though the display showed the correct tempo. Pattern tempo was set too early on a queued-up pattern change. The size of a sample was incorrectly displayed in the flex file browser when FLEX FORMAT was set to 24-bit. It was not possible to trig a sample chromatically via MIDI if MIDI mode was active. It was not possible to record and lock slots in LIVE RECORDING mode via MIDI on any track other than the active track. If any of the Trig modes CHROMATIC, SLOTS, SLICES, or DELAY CTRL were active, the bank selection LEDs were not working correctly. Green LEDs were not lit to show banks containing data, and the currently selected bank was not shown with a red LED. When reloading an FX parameter page of an unsaved part, it did not reload the correct default parameter values. Reverbs couldn't be silenced by pressing [STOP]+[STOP].
Version 1.40 — 3 Dec 2020
Improvements: [MKII] Implemented a brightness setting for the LEDs and OLED screen. The option is located in the PERSONALIZE menu. Added the functionality to preview a sequencer step (including its parameter locks) in GRID RECORDING mode. Press [TRIG] + [YES] to preview a step on an audio track on the MAIN outputs. Press [TRIG] + [CUE] to preview a step on an audio track on the CUE outputs. Press [TRIG] + [YES]/[CUE] to preview a step on a MIDI track. Increased the length of the time-out countdown when selecting bank or pattern. Adjusted a number of bank/pattern select behaviors to improve usability and harmonize this functionality across the Elektron product line. Added the possibility to display all the parameter values on a track parameter page. Press and hold a [TRACK PARAMETER] key to view the parameter values. An additional SBNK parameter is added to the NOTE SETUP (SRC) page on the MIDI tracks to make it possible to send LSB Bank Select messages. Added support for pattern-specific tempo. Added functionality to randomize and reload TRACK PARAMETER page parameters. Press [TRACK PARAMETER] + [YES] to randomize. Press [TRACK PARAMETER] + [NO] to reload from saved part. Added support for triggering trig modes on audio tracks via MIDI. To enable this, set AUDIO NOTE IN in MIDI CONTROL to either FOLLOW TM or MAP/TRACK. For tracks configured to play slices or slots when receiving MIDI note data, holding a trig in GRID RECORDING mode while receiving a MIDI note now locks the same slice/slot that is played to the held trig. Added support for applying various trig actions to multiple trigs simultaneously. This includes changes to parameter locks, sample locks, microtiming, copying/pasting/clearing trigs, and converting multiple trigs to trigless trigs or trigless locks. Added an option to select if note length should be recorded or not while inputting notes in the MIDI sequencer. The option is located in the PERSONALIZE menu. [...]
Version 1.31 — 24 Apr 2019
Improvements: Added screen saver. The screen will have reduced brightness after 5 min of inactivity, and go completely black after an additional 55 min. Does not apply to MKI devices.
Tracked in 13 rigs on FW//RADAR.
Owners of the Elektron Octatrack MKI on FW//RADAR also track
What is the latest firmware for the Elektron Octatrack MKI?
The latest firmware for the Elektron Octatrack MKI is version 1.40C, released on 27 Mar 2025. FW//RADAR last checked Elektron's official page on 26 Oct 2026.
How do I update the Elektron Octatrack MKI?
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.
Where can I download Elektron Octatrack MKI 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 MKI manual?