Jump to content

Failed to write firmware. Timeout.


Recommended Posts

Posted · Failed to write firmware. Timeout.

I am trying to update the firmware on my OUM to support a heated bed, however, everytime I try to upload my custom HEX from robotfuzz it times out. I am able to load the default firmware without an issue though...

I have tried Cura 15 and 12, as well as Windows and Linux.

It does seem to erase the firmware (as it will not post if you un-power it before reloading the default).


When I run Cura from Linux I get a warning about the serial port not being valid (I can grab the full message if that helps)...

Is it possible the generated HEX is invalid?



  • Link to post
    Share on other sites

    Posted · Failed to write firmware. Timeout.

    There is a little problem in that if you pick the wrong sensor type, the firmware enters an error state when it first starts.

    Eliminate some variables and get some confidence in the builder by using the most basic template to build the firmware for the simplest configuration and see if you can get that to work.

    Either Basic UM or Basic UM plus Ulticontroller and do NOT change for the heated bed.


  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • UltiMaker Cura 5.4 stable released
        The full stable release of UltiMaker Cura 5.4 is here and it makes it easier than ever to remove brims and supports from your finished prints. UltiMaker S series users can also look forward to print profiles for our newest UltiMaker PET CF composite material!
          • Like
        • 58 replies
    • Create New...