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Which firmware version for MK3S+ with MMU2S?  

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Eule
 Eule
(@eule)
Eminent Member
Which firmware version for MK3S+ with MMU2S?

Hello  all,

I want to upgrade my MK3S+ with MMU2S. Latest firmware for MK3S+ is version 3.14.1. In the release notes it is said that this release only works with "MMU2S/MMU3 firmware version 3.0.3". But the release notes from this firmware states that "This firmware release 3.0.3 is not compatible with the MK3S+ or MK3.5 MMU3 setup."?

Is there an error in the release notes, or what is the latest working version?

BR
Oliver

Posted : 21/09/2025 3:52 pm
Cath
 Cath
(@cath)
Member
RE: Which firmware version for MK3S+ with MMU2S?

Did you ever find this out?

Posted : 02/11/2025 7:22 pm
matjazr
(@matjazr)
Active Member
RE: Which firmware version for MK3S+ with MMU2S?

i think this would work: https://help.prusa3d.com/downloads/mk3-family

its written: MMU related changes, so looks like there is MMU support integrated 😉

Posted : 03/11/2025 5:03 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Which firmware version for MK3S+ with MMU2S?

Try
https://help.prusa3d.com/downloads/mmu2s
MMU and Mk3S+ firmware in this file
regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility.Location Halifax UK

Posted : 03/11/2025 9:54 pm
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