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fm1-glitch, image 1 from its README
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Firmware

fm1-glitch

Loud88/100

GLITCH – microsound drum machine firmware for the M-VAVE FM-1 (FM1 Open based, beta)

fm1-glitch is custom firmware for the M-VAVE FM-1, by @ttreu.

forM-VAVE FM-1·by@ttreu

Unclaimed. Is this yours? Sign in with GitHub as @ttreu to claim it.

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Download v0.3.0-beta

BetaFM1-GLITCH.fwsc· 461 KB· +1 file

Custom license· ttreu/fm1-glitch·subcity.at·downloads come from the creator’s GitHub releases

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12 commits and 3 releases in the last year
Activity · last 12 months
3 releases
  1. v0.3.0-betaGLITCH 0.3.0 betaBeta2 files

    Beta. Tested on one FM-1 (November 2026). Test reports from more FM-1 owners are very welcome.

    New in this release

    • Button lights as in GLIDER: all 14 buttons glow faintly so their labels can be read, and light fully while held. Full light also shows where you are: HOME, EDIT, SEL, FX on their pages, ENV on SOUND, LFO on FILTER, OCT+ on a later step page, REC while the loop has mutated, GLO while slots are muted. PLAY is green while the sequencer runs and glows white when it stops. Nothing blinks.
    • The selected slot's key is lit right after power-on (it stayed dark until something changed).

    Install

    1. Back up projects, voices and samples with the firmware that is on your FM-1 now.
    2. Open the web installer at https://subcity.at/flash/fm1-glitch-drums/ (or download FM1-GLITCH.html and open it) in Chrome or Edge, connect the FM-1 by USB, choose Device update. Keep power and USB connected.
      • From another FM1 Open firmware (GLIDER, GLITCH, ARPHONY, Official Open) the normal update works.
      • From the original V15 or another firmware: Recovery & force update → Force flash.
    3. Back to stock: same page, Recovery & force update, Restore original V15.

    On an FM1 Open firmware you can also flash FM1-GLITCH.fwsc with python3 tools/flash_fm1.py flash (macOS).

    Files

    • FM1-GLITCH.html – flashing page with this firmware and the original V15 recovery image
    • FM1-GLITCH.fwsc – firmware package (identity FM-1_8730200, build ed5b4211ff26339f, SHA-256 173f7792a6f737a5c46c0328a2347be613b9b8bd875a82d738c5437cf3457e06)

    Manual: GLITCH.md

    Show all 2 files
    Other files
  2. v0.2.0-betaGLITCH 0.2.0 betaBeta2 files

    Beta. Tested on one FM-1 (October 2026). Test reports from more FM-1 owners are very welcome.

    New in this release

    • Own update identity FM-1_8730200 instead of FM1 Open's FM-1_8000014, so tools and the hub can tell which firmware is on a connected FM-1. Tested on an FM-1: switching between GLIDER, GLITCH and ARPHONY, back to the original V15, and from V15 again.

    Install

    1. Back up projects, voices and samples with the firmware that is on your FM-1 now.
    2. Open the web installer at https://subcity.at/flash/fm1-glitch-drums/ (or download FM1-GLITCH.html and open it) in Chrome or Edge, connect the FM-1 by USB, choose Device update. Keep power and USB connected.
      • From another FM1 Open firmware (GLIDER, GLITCH, ARPHONY, Official Open) the normal update works.
      • From the original V15 or another firmware: Recovery & force update → Force flash.
    3. Back to stock: same page, Recovery & force update, Restore original V15.

    On an FM1 Open firmware you can also flash FM1-GLITCH.fwsc with python3 tools/flash_fm1.py flash (macOS).

    Files

    • FM1-GLITCH.html – flashing page with this firmware and the original V15 recovery image
    • FM1-GLITCH.fwsc – firmware package (identity FM-1_8730200, build 344d3f8193334743, SHA-256 5a3d99b8273b80639d2a2e04717db6f83b46e540b00d758a03e73a4876bf8066)

    Manual: GLITCH.md

    Show all 2 files
    Other files
  3. v0.1.0-betaGLITCH 0.1.0 betaBeta2 files

    Beta. First hardware test on a real FM-1 (October 2026): flashing worked, the CPU figure on the HOME page stayed below 30 % with dense beats, effects and a stutter, and the sound matches the simulator. Tried on one unit so far – test reports from more FM-1 owners are very welcome: please use the Hardware test report issue template.

    Install

    1. Back up projects, voices and samples with the firmware that is on your FM-1 now. GLITCH stores its patterns in the sample area and cannot read FM1 projects, voices or samples.
    2. Download FM1-GLITCH.html, open it in Chrome or Edge, connect the FM-1 by USB, choose Device update. Keep power and USB connected.
    3. Back to stock: same page, Recovery & force update, original V15.

    On FM1 Open firmware (GLIDER, GLITCH, Official Open) you can also flash FM1-GLITCH.fwsc with python3 tools/flash_fm1.py flash (macOS).

    After flashing

    Look at the CPU figure on the HOME page with a dense random beat (KIT: DENSITY high), shimmer and a stutter held. It should stay well below 100 %. Please report the highest value you see.

    Files

    • FM1-GLITCH.html – Workbench page with this firmware and the original V15 recovery image
    • FM1-GLITCH.fwsc – firmware package (build ffe033379b3337e9, SHA-256 eb8aa30b471c11ece93e5b713d8a068e0c58de374ac37b4ae0bdf7d6a52ba2d4)

    Manual: GLITCH.md

    Show all 2 files
    Other files