OTO Machines Biscuit firmware

OTO Machines discontinued Released 15 Feb 2018
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Final firmware: 2.3

OTO Machines has stopped releasing firmware updates for this device.

What's new in 2.3

OTO Machines Biscuit (discontinued). Current file on support page is Biscuit_Rev_1_2.syx (uploaded April 2017). DB has firmware_version=2.3 — likely a legacy import error, since OTO no longer publishes anything newer than 1.2 for the main Biscuit OS. Biscuit_Der_OTO (alternate mask, v2.4) is a different firmware mode. Needs_review flagged for version reconciliation.

You can still add it to your rig to keep an inventory and track its used market price.

Last checked 17 Aug 2026

Download 2.3 from OTO Machinesopens in a new tab — otomachines.com

How to update the OTO Machines Biscuit

Update via MIDI SysEx. Download the Biscuit firmware (a zipped .syx file) from otomachines.com/support/, unzip, connect Biscuit MIDI IN to a computer MIDI interface, then send the .syx file using a SysEx-capable tool — SysEx Librarian (Mac) or MIDI-OX (Windows). Refer to the Biscuit Upgrade Procedure PDF on the same support page. OTO also publishes Der OTO as an alternate firmware mask for Biscuit with a different sound engine — see the Biscuit Der OTO section on the support page.

What you need

SysEx Librarian (Mac) / MIDI-OX (PC) — the software OTO Machines uses to load firmware onto the OTO Machines Biscuit. Download links below.

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

Drivers & software for the OTO Machines Biscuit

The OTO Machines Biscuit is updated with SysEx Librarian (Mac) / MIDI-OX (PC), published by OTO Machines.

Download SysEx Librarian (Mac) / MIDI-OX (PC) from OTO Machinesopens in a new tab — otomachines.com

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OTO Machines Biscuit firmware update history

Changelogs summarised from the manufacturer's release notes.

2.3

Release notes for this version are listed above.

Release notesopens in a new tab — otomachines.com

Tracked in 1 rig on FW//RADAR.

OTO Machines Biscuit manual & official pages

OTO Machines Biscuit firmware FAQ

What is the latest firmware for the OTO Machines Biscuit?

The latest firmware for the OTO Machines Biscuit is version 2.3. FW//RADAR last checked OTO Machines's official page on 17 Aug 2026.

How do I update the OTO Machines Biscuit?

Update via MIDI SysEx. Download the Biscuit firmware (a zipped .syx file) from otomachines.com/support/, unzip, connect Biscuit MIDI IN to a computer MIDI interface, then send the .syx file using a SysEx-capable tool — SysEx Librarian (Mac) or MIDI-OX (Windows). Full instructions on OTO Machines's official firmware page.

What software do I need to update the OTO Machines Biscuit?

You need SysEx Librarian (Mac) / MIDI-OX (PC), available from OTO Machines's support site.

Where can I download OTO Machines Biscuit firmware and drivers?

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

Where can I find the OTO Machines Biscuit manual?

The official OTO Machines user manual is a PDF hosted on otomachines.com. OTO Machines Biscuit user manual (PDF) →

Is the OTO Machines Biscuit still receiving firmware updates?

OTO Machines has stopped releasing firmware for the OTO Machines Biscuit. The last version is 2.3.

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