Firmware 4.4.0 issue, MicroUSB connection doesn't work anymore.

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Sid

(@sid)

Active Member

Firmware 4.4.0 issue, MicroUSB connection doesn't work anymore.

Hi All,

Due to temperature reading issues Prusa support suggested to firmware update, so i've performed the update to 4.4.0. Good thing is that the temperature issue seems to be solved, bad thing ; the printer is somewhat unsuable because the MicroUSB connection doesn't work anymore. I run al print farm with multiple printers with a lot of automation tasks, and this is now stranger in our midst.

I was wondering if someone did encouter this problems and found a solution. For what I have seen is that the Prusa Mini uses a generic Windows Driver. After the update it's recognized as; USB Composite Device but with an exclamation mark in Windows Device Manager (see attached screenshot) so it doesn't work. I've tried to manual setup the drivers from the Prusaslicer directory, but those aren't for the Mini. Prusa itself lacks support for the MicroUSB connection

Schermafbeelding-2022-12-04-070532.png

Opublikowany : 04/12/2022 6:56 am

Jakub Dolezal

(@jakub-dolezal)

Member Admin

RE: Firmware 4.4.0 issue, MicroUSB connection doesn't work anymore.

Hi Sid,

OctoPrint connection was verified on the final build of the 4.4.0, so it should work. What kind of print setup are you running (hardware, software)?

You can also contact the developers on GitHub https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/new/choose

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Opublikowany : 05/12/2022 5:48 pm

Sid

(@sid)

Active Member

Topic starter answered:

RE: Firmware 4.4.0 issue, MicroUSB connection doesn't work anymore.

Hi Jakub,

Thank you for your reply. I've added an bug in the github page. With the Beta firmware it works, but in 4.4.0 it doesn't on a Windows host. Maybe a raspberry with octoprint could work but these are hard to get by.

Opublikowany : 08/12/2022 6:12 am

thomasvnl

(@thomasvnl)

New Member

RE: Firmware 4.4.0 issue, MicroUSB connection doesn't work anymore.

I have the exact same issue after updating to FW4.4.0. The COM port is no longer available on Windows, instead the device manager is showing a "USB Composite Device" with a warning that it could not start. This is on the latest version of Windows 10.

It shows exactly the same as Sid's screenshot.