Jump to content
Ultimaker Community of 3D Printing Experts

Trying to load Marlin firmware onto bricked Ultimaker 2


Recommended Posts

Posted · Trying to load Marlin firmware onto bricked Ultimaker 2

Hi all,

I acquired a couple of Ultimaker 2s recently, with both appearing to have bricked 2560 chips on the control board.

Both boards have had their chips removed, with one being replaced.

I've managed to get the Arduino bootloader onto it and it is reading back ok, but the board isn't showing up as a USB device on Windows, so I can't upload the Marlin firmware to it.

Am I missing something? The 24V stuff appears to be working ok, and I get an LED on when the board is powered through the power supply, but nothing on the USB.

Is there a way to load the firmware onto the 2560 through another method other than USB?

  • Link to post
    Share on other sites

    • 1 month later...
    Posted · Trying to load Marlin firmware onto bricked Ultimaker 2

    There is also an ATMega16U2 (Or ATMega8U2, or ATMega32U2) on there. It's located near the USB connector.

    It needs the USB serial firmware from Arduino:

    atmega16u2-Mega2560-Rev3.hex @ https://github.com/arduino/Arduino/tree/master/hardware/arduino/avr/firmwares/atmegaxxu2/arduino-usbserial

    Seeing that you manage to put a bootloader on there, it sounds like you have a working AVR ISP. With that you could also just load the firmware on the ATMega2560, instead of just the bootloader.

    You also need to program the proper fuses. Fuses for the ATMega16U2:

    ef d9 fc

    Fuses for the ATMega2560:

    ff d0 fd

  • 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

      • New here? Get ahead with a free onboarding course
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 11 replies
    • Create New...