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prusa3d / Prusa-Firmware

Firmware for Original Prusa i3 3D printer by PrusaResearch
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New FW 3.0.0 and 3.0.1 is not compatible with MMU2S #4508

Closed DavidB1975 closed 8 months ago

DavidB1975 commented 9 months ago

MK3S+

NOT RESOLVED FOR ME - MMU2S - works on FW 1.0.6. Version 3.0.0 and 3.0.1 I get MCU error

TRied factory resetting MMU before FW update and after, the error remains the same

SD card or USB/Octoprint SD card

Describe the bug When i load 3.0.0 or 3.0.1 onto my MMU2S I have the first 3 green LED, 4 flashing slowly red, 5 flashing fast green. Printer after enabling MMU in the printer, display says MMU MCU Error

To Reproduce update MMU2S to version 3.0.0 or 3.0.1

Expected behavior Normal functionality after the update

G-code None

Video None

Strandkrabbe commented 9 months ago

I have the same problem. I updated the printer firmware to 3.13.2 and the performed the Temperature Model calibration. After that I updated the MMU2S firmware to version 3.0.1. After the MMU2S resets all 5 MMU LEDs flash green irregularly. Then the idler motor starts moving really fast compared to the old firmware. After a moment it turns in the other direction and crashes into the limitation of the idler. The idler motor tries to move further and the MMU2S shuts down.

wabbitguy commented 9 months ago

I have the MMU2S and it's running 3.0.0 just fine BUT I have to use the MK3S 3.13.0 firmware on the printer. If I update either the firmware on the printer to 3.13.2 or 3.0.1 it completely ignores the MMU2S regardless on the MMU enabled in the LCD menu or not.

plampix commented 9 months ago

This is not a bug. The MMU 3.0 firmware is a major rewrite, that requires a newer FW on your printer as well.

Check out the changelog at https://github.com/prusa3d/Prusa-Firmware/releases/tag/v3.13.0 It contains:

Compatibility:

3.12.2 + 1.0.6 (firmware combination valid until this release) 3.13.0 + 3.0.0 (firmware combination starting this release)

DavidB1975 commented 9 months ago

Installing new FW på printer and MMU does not change anything for me, same error - I call that a bug. Works fine with 1.0.6 and 3.12.2 3.13.x and 3.0.x combo puts my MMU2S in an error state

Djamuka commented 9 months ago

Try this : https://help.prusa3d.com/article/factory-reset-mmu_510075

payne8 commented 9 months ago

I can confirm that the factory reset suggested by @Djamuka made my mmu2s start working. It still makes a loud noise during the self test and my mk3s prints much louder now on the 3.13.2 firmware. But it seems to be working correctly.

Djamuka commented 9 months ago

I can confirm that the factory reset suggested by @Djamuka made my mmu2s start working. It still makes a loud noise during the self test and my mk3s prints much louder now on the 3.13.2 firmware. But it seems to be working correctly.

FW is very agressive with MMU2s , be aware of the idler screw....

3d-gussner commented 8 months ago

@DavidB1975 Is this issue solved if so please close it.

3d-gussner commented 8 months ago

Closing issue due to no response.