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USB error on Original Prusa MK3.5S with MMU3 Firmware 6.4.0+11974
I keep getting the error: USB drive or file error, the print is now paused reconnect the drive.
Original Prusa MK3.5S MMU3 Firmware6.4.0+11974
I remove USB drive and re insert USB and the print restarts. This has happened 4 times about 10 minutes apart. I have only gotten this error after 6.4.0 firmware. I have printed this file probably 60 times prior with out issue. Except when MMU3 does not like me. Is this related to 6.4.0?
Posted : 09/01/2026 12:25 am