UNOFFICIAL FIRMWARENOT FROM KORG · COMMUNITY BUILDS
Community developers are writing their own custom firmware, also called alternative firmware, for the Volca FM. This is a selection, not every fork or experiment: we list the projects with a working build and a real following, and check them every day. FW Radar doesn’t host these files and doesn’t send alerts for their versions: each link opens the developer’s page.
1 PROJECT · LAST CHECKED 25 OCT 2026
Get an email when new custom firmware for the Volca FM is found
01STABLE
Pajen firmware
by Pajen
An unofficial update of Korg's 1.07 firmware: velocity over MIDI, a working program change, SysEx parameter changes so Dexed or any DX7 editor can edit and automate patches, LFO fixes, notes that keep ringing across patch changes and new CCs, chorus included.
Unofficial, not supported by Korg. You need both files (sys_1 and sys_2). Korg's 1.07 goes back on the same way. The download page is a copy kept by ranzee.com: the developer posted it on Reddit.
READ THIS FIRSTAt your own risk, and it may void your warranty. Read the developer’s install notes, back up your presets, and make sure you know how to go back: official 1.07 and how to install it →
Running one of these?Mark it in your rig: the Volca FM won’t show as out of date, and you still hear about official updates.
An alert the day a new Volca FM firmware ships, by email, Telegram or push
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The Korg Volca FM is no longer made, but Korg can still ship firmware for it and we keep checking the official download page. One message per release. No spam, no newsletter.
It’s written by independent developers, not by Korg. Some projects are stable, others are early betas: read each developer’s notes before you flash.
Can I go back to the official firmware?
Yes: load the official 1.07 with Korg Volca FM System Updater, as described in the official update guide.
Why isn’t every Volca FM project listed?
We pick the ones worth trying: a build you can install and a real following, from GitHub stars and downloads or from the community. Forks that only rename a project or add a few presets stay out, and brand-new projects get a second look after their first week.
Does FW Radar track custom firmware versions?
We note the latest version each developer has published when we check the list, every day, but we don’t send alerts for it: alerts are only for official Korg firmware.
