Polyend Seq firmware

Polyend discontinued Released 18 Jan 2019

Final firmware: 2.2.6

Polyend has stopped releasing firmware updates for this device.

What's new in 2.2.6

Fixed MIDI transport behavior under specific conditions. Fixed note offset (nudges) recording from external controllers. Added compatibility with the new Polyend Seq Tool for firmware flashing and pattern dump/load functionality. Fixed Roll-knob track population muting manually-added steps. MIDI notes from external controllers no longer auto-retransmitted to all MIDI outputs (DIN, USB). Seq no longer drifts out of sync on first phrase with external clock. Overall stability enhancements.

You can still add it to your rig to keep an inventory and track its used market price.

Last checked 7 Aug 2026

Download 2.2.6 from Polyendopens in a new tab — polyend.com

How to update the Polyend Seq

Seq firmware updates via the Polyend Seq Tool desktop application (available from the Seq downloads page). Connect Seq via USB, launch the Seq Tool, and follow the in-app flash procedure. The Seq Tool also supports pattern dump and load.

What you need

Polyend Tool via USB, file .hex — the software Polyend uses to load firmware onto the Polyend Seq. 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 Polyend Seq

The Polyend Seq is updated with Polyend Tool via USB, file .hex, published by Polyend.

Download Polyend Tool via USB, file .hex from Polyendopens in a new tab — polyend.com

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Polyend Seq firmware update history

Changelogs summarised from the manufacturer's release notes.

Version 2.2.6

Release notes for this version are listed above.

Release notesopens in a new tab — polyend.com

Version 2.0

Release notesopens in a new tab — polyend.com

Polyend Seq manual & official pages

Polyend Seq firmware FAQ

What is the latest firmware for the Polyend Seq?

The latest firmware for the Polyend Seq is version 2.2.6. FW//RADAR last checked Polyend's official page on 7 Aug 2026.

How do I update the Polyend Seq?

Seq firmware updates via the Polyend Seq Tool desktop application (available from the Seq downloads page). Connect Seq via USB, launch the Seq Tool, and follow the in-app flash procedure. Full instructions on Polyend's official firmware page.

What software do I need to update the Polyend Seq?

You need Polyend Tool via USB, file .hex, available from Polyend's support site.

Where can I download Polyend Seq firmware and drivers?

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

Where can I find the Polyend Seq manual?

The official Polyend user manual is a PDF hosted on polyend.com. Polyend Seq user manual (PDF) →

Is the Polyend Seq still receiving firmware updates?

Polyend has stopped releasing firmware for the Polyend Seq. The last version is 2.2.6.

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