Prusa EasyPrint General discussion, announcements and releases Known issues and troubleshooting

Nov 25, 2025 · RE: 6.4.0 Firmware for Prusa CORE One + & CORE One In principle you are right but this issue is a bootloader regression introduced with the new version that happens to a lot of people …

Nov 25, 2025 · RE: 6.4.0 Firmware for Prusa XL I'm still having these issues with failure to complete a nozzle cleaning and this annoying "probe the bed a stupid amount of times" issue.

Jan 19, 2026 · RE: 6.5.2 Firmware for Prusa CORE One L I had the "Nozzle Cleaning Failed" errors several times before this update, interestingly every time a reboot of the printer fixed them (retry …

Jan 24, 2026 · RE: What's next from Prusa? Once INDX is out (on the Core One and L) and fully stable, I think Prusa reaches a divide. If they want to stay in the consumer market, they will have to reduce …

Nov 22, 2025 · This is the second release candidate for the upcoming firmware 6.4.0 for the Prusa CORE One, MK4S, MK4, MK3.9S, MK3.9, MK3.5S, MK3.5, MINI & XL. It reunifies the firmware …

Apr 14, 2025 · 6.3.2 Firmware for Prusa CORE One Summary Adjusted RPM range check for the Print Fan test This is the stable release of firmware 6.3.2 for the Prusa CORE One, addressing issues with …

Latest Post: Nozzle Cleaning failed after the printbed goes all the way to the bottom to 338mm - firmware 6.5.2 Our newest member: Huggypanda Recent Posts Unread Posts Tags Forum Icons: …

Nov 11, 2025 · This firmware adds full support for the Prusa CORE One L and its unique hardware, including the new features detailed below. Mains-powered AC bed (C1L) The CORE One L …

Sep 23, 2025 · 6.4.0-RC Firmware for Prusa CORE One Summary New features Nozzle cleaning failed wizard Fixes Fix #4816 This is the release candidate for the upcoming firmware 6.4.0 for the Prusa …