Prusa MMU3 firmware
currentThe Prusa MMU3 is tracked under makers & open firmware. Its latest firmware, 3.0.4, shipped on Mar 13, 2026.
- Latest firmware
- 3.0.4
- Released
- Category
- Makers & open firmware
- Last checked
How to update the Prusa MMU3
- Download the firmware for your exact printer from help.prusa3d.com/downloads.
- Copy the .bbf (MK4, XL, Core One) to a USB drive, insert it, and confirm on the printer.
- Or use PrusaSlicer's firmware updater over USB for older MINI and MK3 boards.
Always download firmware from the manufacturer or project itself. Firmwarely links out; it never hosts firmware.
What changed
Summary Information for the MK4, MK3.9, CORE One and CORE One L owners Information for the MK3S+ owners List of pull requests This is the stable release of firmware version 3.0.4 for the MMU3 unit. Information for the MK4, MK3.9, CORE One and CORE One L owners This is an updated release containing …
Version history
| 3.0.4 |
FAQ
What is the latest firmware for the Prusa MMU3?
Version 3.0.4, released Mar 13, 2026. This page is refreshed every hour from the manufacturer's release page.
How do I update the Prusa MMU3?
See the step-by-step above. Follow the project's release page for the flashing or OTA procedure. Many maker devices update from a web installer or the project's desktop app.
How does Firmwarely know when there's a new version?
Every hour we read the manufacturer's official release page for the Prusa MMU3 and record the version, date and changelog. Subscribers watching this device get an email when it changes: the next morning on Pro, in the Monday roundup on the free plan.
Is this an official Prusa page?
No. Firmwarely is independent. Device and brand names belong to their manufacturers; always download firmware from the official source.
Get alerts for Prusa MMU3
One email when new firmware or a security fix ships: weekly and free for up to 3 devices, daily on Pro.