6.0.4 Firmware for Original Prusa MK3.9  

6.0.4 Firmware for Original Prusa MK3.9

Summary

• Modified MCU overheat (XL)
• Bug fixes

This is a stable firmware release 6.0.4 that fixes bugs discovered during testing, as well as reported by the Prusa community.

Modified MCU overheat

If an MCU overheat occurs, the printer will first warn you and allow you to continue. If the MCU temperatures do not improve, the printer will display an error. The MCU overheat can be caused by higher ambient temperatures. See the 3D Printing Handbook for more information.

Bug fixes

• 1st layer calibration being stuck when using MK3.5 with MMU with unloaded filament reported on GitHub #4073. Previously, calibration was stuck because the MMU slot was unspecified when the filament was unloaded before starting calibration. Now we load filament into the first MMU slot. To use a different slot, load the filament manually and then start the calibration.
• Reproducible crash when using M300 G-code for playing sounds with certain frequencies. Reported on GitHub #4050. The crash was fixed, but the audio is still incorrect on XL. (This will be properly solved in some later version.)
• PrusaLink getting stuck on basic authentication, reported on GitHub #3705.
• Rare crash when a certain printer state changes too fast for GUI to notice, reported on GitHub #4052 and #4077.
• Printing times displayed on the printer now match the times estimated in PrusaSlicer.
• M300 G-code not waiting when playing sounds, reported on GitHub #3660. Fixed by community contributor @bkerler

Full Changelog: v6.0.3...v6.0.4

Release notes: https://github.com/prusa3d/Prusa-Firmware-Buddy/releases/tag/v6.0.4