6.4.2 Stable firmware for Prusa XL - General discussion, announcements and releases https://forum.prusa3d.com/forum/original-prusa-xl-tool-changer-general-discussion-announcements-and-releases/6-4-2-stable-firmware-for-prusa-xl-2/ Prusa3D Forum Discussion Board en-US Mon, 15 Jun 2026 21:18:38 +0000 wpForo 60 RE: 6.4.2 Stable firmware for Prusa XL https://forum.prusa3d.com/forum/original-prusa-xl-tool-changer-general-discussion-announcements-and-releases/6-4-2-stable-firmware-for-prusa-xl-2/#post-794147 Mon, 08 Jun 2026 16:24:28 +0000 fix the bed leveling bug.

]]> General discussion, announcements and releases JuanCholo https://forum.prusa3d.com/forum/original-prusa-xl-tool-changer-general-discussion-announcements-and-releases/6-4-2-stable-firmware-for-prusa-xl-2/#post-794147 6.4.2 Stable firmware for Prusa XL https://forum.prusa3d.com/forum/original-prusa-xl-tool-changer-general-discussion-announcements-and-releases/6-4-2-stable-firmware-for-prusa-xl-2/#post-793660 Wed, 03 Jun 2026 12:08:39 +0000 Summary
  • Fixes
    • Fixed not loading custom Connect certificates

This is the stable release of firmware 6.4.2 for the Prusa XL, MINI.

Fixed not loading custom Connect certificates

Our customers can set up their printers to use non-official Connect servers by using the “Load Settings from File” menu item. This should also include loading a custom SSL certificate, which was however not working due to a bug in the firmware that has now been fixed.

Please note that we do not open-source our Connect backend infrastructure.

]]> General discussion, announcements and releases Jan Kratochvíl https://forum.prusa3d.com/forum/original-prusa-xl-tool-changer-general-discussion-announcements-and-releases/6-4-2-stable-firmware-for-prusa-xl-2/#post-793660