The MIDI transport was behaving strangely in certain circumstances, not anymore.
Fixed issue where note offsets (nudges) recorded from external controllers were not working properly.
Added compatibility with the new Polyend Seq Tool for firmware flashing and pattern dump/load functionality.
The issue with populating a track with the use of the Roll knob causing that the manually added steps were muted is now fixed.
Notes incoming from the external controller over MIDI input are not being automatically transmitted to all MIDI outputs (DIN, USB) anymore as it was causing a lot of conflicts.
In certain circumstances the Seq was getting out of sync when externally clocked, this was fixed.
Overall stability enhancements.
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Last checked 23 Oct 2026
What you get with a free account
An alert the day a new Seq firmware ships, by email, Telegram or push
Your whole rig in one place, with the version each device is on
Used and new Reverb prices for your gear
A public rig page to share, if you want one
The Polyend Seq is no longer made, but Polyend can still ship firmware for it and we keep checking the official download page. One message per release. No spam, no newsletter.
Download Polyend Tool (macOS or Windows) and the Seq firmware zip from the Seq downloads page, and unzip the firmware. Connect Seq to the computer with the USB cable only, directly (no hubs or adapters) and with the AC adapter disconnected, otherwise the unit can get bricked; if that happens, simply flash it again on USB power. Power up Seq, open Polyend Tool, press the hidden reset/flash button on the back panel with a thin object such as an unbent paperclip, click Find Device and point the tool to the downloaded .hex firmware file. Seq restarts by itself when flashing is done; the installed version is shown on the splash screen at startup.
What you need
Polyend Tool — the software Polyend uses to load firmware onto the Polyend Seq. Download links below.
Added Random roll Velocity Curve.
The start button resets the cue point for all the tracks.
All the previous user-reported bugs are now removed.
The increased refresh rate for the incoming MIDI signals.
New rolls behaviour, they work on the whole length of a step now.
Toggle on/off of a step with roll attached won’t lose the roll parameter anymore.
Unstable behaviour while on an external MIDI clock in the first phrase was fixed.
Added per track step retrigger – click and hold down the Move knob and indicate the step/s on a track/s you want to retrigger from.
Added roll Note Curve – each step in the roll’s length will trigger notes in a scale set to the particular track – Flat, Inc, Dec, Inc-Dec, Dec-Inc, Random.
New Tempo knob functionality. Used with a track button gives access to a per-track tempo divider/multiplier, MIDI channel input, MIDI channel output, MIDI output source (two last positions moved from the Note knob section).
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 23 Oct 2026.
How do I update the Polyend Seq?
Download Polyend Tool (macOS or Windows) and the Seq firmware zip from the Seq downloads page, and unzip the firmware. Connect Seq to the computer with the USB cable only, directly (no hubs or adapters) and with the AC adapter disconnected, otherwise the unit can get bricked; if that happens, simply flash it again on… Full instructions on Polyend's official firmware page.
What software do I need to update the Polyend Seq?
You need Polyend Tool, available from polyend.com.
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 →
Is the Polyend Seq still receiving firmware updates?
The Polyend Seq is discontinued: Polyend no longer makes it. The latest firmware we recorded is 2.2.6. FW//RADAR keeps checking Polyend's official page, so a new release would show up here.
