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Issues trying to update firmware  

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Kevin S
(@kevin-s)
Active Member
Issues trying to update firmware

I just finished the MK3s+ to MK3.5s and I cannot install the firmware update. I have copied the .bbf file to the root of the Prusa thumb drive, rebooted the machine and it just beeps at me, warning I should update the firmware. 

I would try updating the firmware from the slicer, but not sure how the USB connection would work. Which USB port would insert the USB cables?

Please help.

 

kevin 

Posted : 13/06/2025 7:47 am
Kevin S
(@kevin-s)
Active Member
Topic starter answered:
RE: Issues trying to update firmware

I connected the PC to the printer via USB cables and attempted to flash the machine via Slicer and the USB cables. The Slicer is asking for a serial port and will accept no values. Also, should the firmware update file be a hex file instead of the bbf extension? If so where would I find or create the need hex file?

 

Thank you

Posted : 13/06/2025 7:56 am
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