Firmware 6.5.6 Removed Already - General discussion, announcements and releases https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/ Prusa3D Forum Discussion Board en-US Mon, 08 Jun 2026 11:44:51 +0000 wpForo 60 RE: Firmware 6.5.6 Removed Already https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793890 Fri, 05 Jun 2026 14:56:10 +0000  

Posted by: @chmax

I wonder why Prusa people answers on reddit but never waste a second on their own forum...

Hopefully that changes when we get new forum software!!

]]> General discussion, announcements and releases Eds_3D_Odyssey https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793890 RE: Firmware 6.5.6 Removed Already https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793876 Fri, 05 Jun 2026 12:36:46 +0000 I wonder why Prusa people answers on reddit but never waste a second on their own forum...

]]> General discussion, announcements and releases chmax https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793876 RE: Firmware 6.5.6 Removed Already https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793830 Fri, 05 Jun 2026 05:41:12 +0000 The first hint from the dev team points to older xBuddy revisions.

Fortunately, since I’ve already sold my first MK4, my oldest remaining printer is an MK4S. Wait'n'see.

]]> General discussion, announcements and releases Kachidoki https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793830 RE: Firmware 6.5.6 Removed Already https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793694 Wed, 03 Jun 2026 17:27:48 +0000 It looks like the issue is specific to the MK4S. Mine starts up normally, so I’ll wait for the next version.

Version 6.4.2 was released at the same time for the XL. The release notes are brief, but I’ve noticed an improvement in the user interface. When you select tools to rearrange the filaments, the selected print head lights up. But I also found a bug right at the start of the first print, when switching to the left screen, the printer status overlaps the information.

]]> General discussion, announcements and releases Kachidoki https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793694 RE: https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793690 Wed, 03 Jun 2026 16:53:21 +0000 Glad Prusa pays attention to the forum

https://www.reddit.com/r/prusa3d/comments/1tvtw9d/prusa_buddy_fw_656_retracted/

https://www.reddit.com/r/prusa3d/comments/1tvsk49/dont_install_the_github_fw_for_mk4s_from_today/

]]> General discussion, announcements and releases Ruebarb https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793690 RE: Firmware 6.5.6 Removed Already https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793682 Wed, 03 Jun 2026 15:07:34 +0000 Guess they found a last minute show-stopper bug. @kachidoki you should probably revert. 

]]> General discussion, announcements and releases hyiger https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793682 RE: Firmware 6.5.6 Removed Already https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793681 Wed, 03 Jun 2026 14:34:50 +0000
Posted by: @ruebarb

What the deal? The firmware was released only for a few hours and then taken down.

Arrghh, just updated the whole fleet few minutes ago...

]]> General discussion, announcements and releases Kachidoki https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793681 Firmware 6.5.6 Removed Already https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793680 Wed, 03 Jun 2026 14:32:55 +0000 What the deal? The firmware was released only for a few hours and then taken down.

]]> General discussion, announcements and releases Ruebarb https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/firmware-6-5-6-removed-already/#post-793680