Teenage Engineering EP-40 firmware

Teenage Engineering active
sampler groovebox

Latest firmware: 2.5.1

2.5.1released 3 Jul 2026

What's new in 2.5.1

fix: note-on velocity did not work for samples. fix: crash when cropping long samples. fix: GROUP+PAD shortcut broken in TEMPO. fix: choppy USB audio when streaming from Android devices (e.g. Pixel 9).

Last checked 11 Sep 2026

Download 2.5.1 from Teenage Engineeringopens in a new tab — teenage.engineering

How to update the Teenage Engineering EP-40

Connect EP-40 via USB, open teenage.engineering/downloads/ep-40 in a Chrome, Edge, or Opera browser. Click Update Firmware and confirm the WebUSB permission prompt. The page flashes the latest firmware directly to the device — no updater app required.

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

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Teenage Engineering EP-40 firmware update history

Changelogs summarised from the manufacturer's release notes.

Version 2.5.1 — 3 Jul 2026

Release notes for this version are listed above.

Release notesopens in a new tab — teenage.engineering

Version 2.5.0

- summer 2026 update
Release notesopens in a new tab — teenage.engineering

Version 1.0.5

- increased the usable sample space from 120 MB to 122 MB - changed SYNC OUT to generate continuous clock - improved audio stability to reduce glitches - fixed: crashes and stability problems related to disk access - fixed: stereo icon (right speaker) did not show - fixed: various UI, looping and MIDI/SYNC fixes
Release notesopens in a new tab — teenage.engineering

Teenage Engineering EP-40 manual & official pages

Teenage Engineering EP-40 firmware FAQ

What is the latest firmware for the Teenage Engineering EP-40?

The latest firmware for the Teenage Engineering EP-40 is version 2.5.1, released on 3 Jul 2026. FW//RADAR last checked Teenage Engineering's official page on 11 Sep 2026.

How do I update the Teenage Engineering EP-40?

Connect EP-40 via USB, open teenage.engineering/downloads/ep-40 in a Chrome, Edge, or Opera browser. Click Update Firmware and confirm the WebUSB permission prompt. Full instructions on Teenage Engineering's official firmware page.

Where can I download Teenage Engineering EP-40 firmware and drivers?

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

Where can I find the Teenage Engineering EP-40 manual?

The official Teenage Engineering user manual is a PDF hosted on teenage.engineering. Teenage Engineering EP-40 user manual (PDF) →

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