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6.4.0 Firmware for Prusa MK4S  

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Laban
(@laban)
Active Member
RE:

The 6.4.0 is unstable for many people. For me, i have unkown error at starting, a few reloading filament error, some xbuddy overvoltage detected with this firmware. 

I downgraded to 6.2.6 and all work correctly now.

Posted : 09/01/2026 6:41 am
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