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Ultimaker 3 - Need 3.x Firmware or 3.x Recovery Image


bblabs

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Posted · Ultimaker 3 - Need 3.x Firmware or 3.x Recovery Image

Friends,

 

One of our students updated the firmware on one of our Ultimaker 3 printers and now all of our existing jobs no longer work. We would like to put it back to the original (3.x) to match our other UM3s so that all work as expected, however it appears that Ultimaker has removed links to all previous versions. We attempted to use the recovery image however that also brings the printer to 4.3x.

 

Can someone provide a link to a 3.x firmware or 3.x recovery.img?

 

UM3-rootfs-3.7.6.20170627.tar.xz
UM3-rootfs-3.7.6.20170627.tar.xz.sig

-or-

recovery.img based on 3.x

 

Thank you so much!

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    Posted · Ultimaker 3 - Need 3.x Firmware or 3.x Recovery Image

    Hi @maht,

     

    Thanks for the quick reply. Unfortunately that thread does not appear to have links to 3.x firmware or a 3.x recovery image. Following those instructions (today) will yield you a UM3 with 4.3.3 since Ultimaker continues to update (overwrite) the recovery.img file at the link provided in that thread.

     

    Best regards

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    Posted · Ultimaker 3 - Need 3.x Firmware or 3.x Recovery Image
    2 hours ago, bblabs said:

    Following those instructions (today) will yield you a UM3 with 4.3.3 since Ultimaker continues to update (overwrite) the recovery.img file at the link provided in that thread

     

    Just out of curiosity: what's wrong with getting that version?

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    Posted · Ultimaker 3 - Need 3.x Firmware or 3.x Recovery Image

    Hi @Dim3nsioneer!

     

    We have quite a few existing Simplify3D-generated gcode files that work without issue on machines with earlier firmware versions (< 3.7). Our belief is that later versions of UM3 firmware have introduced either new or updated header fields in the gcode that are required. For example, attempting to use a Simplify 4.1 generated gcode file on a UM3 with >3.6 firmware fails with a number of issues (e.g. won't load from USB stick, thinks both extruders are going to be used when left or right is explicity set, etc.) However if you manually modify the same gcode file with headers produced by Cura 4.4 (assuming you take the time to create a fake job with the desired tool number and material type), it works.

     

    Would much rather get our UM3 back to "the devil we knew" than update 100s of files. Understand later firmware is optimal for tech support and others, but I can't imagine having a print farm and having to relearn new quirks.

     

    Best regards.

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