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Firmware for SQ-64 (Korg)

From-scratch SQ-64 firmware combining Aleph Void's Euclidean and LFO firmwares, with each of the four tracks switchable between a Euclidean sequencer lane and a tempo-synced LFO. Tested only in an emulator.

by Aleph Void LLC

ActiveSource: openMIT

Brick risk. Flashing this carries a known, documented risk of damaging the device.

Distribution
Prebuilt image you flash yourself
Requires stock
Stock update mode (2.0x) for the first install
Source
github.com https://github.com/aleph-void/Korg-SQ-64-Custom-Firmware-Aleph-Void-Official
Homepage
sq64.alephvoid.com https://sq64.alephvoid.com

Description

SHIFT plus a track key toggles that track between the two engines at any time; by default A and B boot as sequencer lanes and C and D as LFOs, and the mix is saved with the settings. Both engines run from one 24 PPQN transport that follows incoming MIDI clock, which gives the Euclidean lanes external sync they lack in the standalone firmware. PLAY resyncs and starts the lanes; STOP silences them while the LFOs keep running. Each engine keeps the feature set of its standalone firmware. Shares the same updater, storage map and install procedure. Written from an independent specification with no Korg code; the authors state it is not certified safe on hardware.

Install notes

Load the prebuilt .vsb from the registry in the browser emulator, or build it with make and validate it (make check, make test). To flash, take a full backup under stock firmware, hold GLOBAL + PATTERN at power-on and send the .vsb with the Aleph Void updater web app. The image reports version 1.0, older than stock 2.0x, so the host tool's downgrade option is needed; whether the stock updater accepts it is unverified. Projects share the stock saved-project slots and overwrite them. Return to stock by sending Korg's official .VSB through this firmware's updater.

Version history

AV aggregate version history
VersionDateNotes
main @ 600bcb22026-10-13Commit pinned by the firmware registry.

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