G-code Isn't fully compatible message - After upgrading firmware to 6.5.3
 
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[Gelöst] G-code Isn't fully compatible message - After upgrading firmware to 6.5.3  

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Bomantz
(@bomantz)
Active Member
G-code Isn't fully compatible message - After upgrading firmware to 6.5.3

I have an MK4 with an MMU3.

Things were working fine until I upgraded the firmware on each.  The MK4 was upgraded to 6.5.3.  The MMU was upgraded to 3.0.4.

Immediately after the upgrade, I began getting the following warning:

        The G-code isn't fully compatible

        Nozzle flow rate doesn't match.

I've checked that the nozzle diam of 0.4 is set in both the printer and Prusa Slicer.  I've also confirmed that the "High Flow Nozzle option is unchecked for each extruder in the slicer.

Any suggestions to get me past this will be appreciated.

Veröffentlicht : 19/04/2026 11:53 pm
Bomantz
(@bomantz)
Active Member
Themenstarter answered:
RE:

I found my issue.  In the hardware settings I found that the Nozzle High Flow setting had been activated by the firmware update.  I deactivated this and all is now fine.

Veröffentlicht : 20/04/2026 11:25 pm
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