Guide how to upgrade your Original Prusa i3 MK3 printer with Raspberry Pi Zero W and OctoPrint. To learn more about OctoPrint, please visit

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Printer doesn’t work when Pi is attached

Whenever I attach the Pi Zero to the RAMBo board, upon booting up, the screen turns white and doesn’t move from that point. I have checked that it is attached alright. Any ideas on what is wrong?

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I have the same problem. Pins appeared to be soldered correctly and the Raspberry works fine with Octopi running by itself, but when I connect it to the EINSY the printer wont boot up. I just get a blank screen.


Hi David, the RPi port is enabled?


Yes, the RPI port is enabled. When connected to the back of the EINSY the green LED light is not on. Also, and it may not be significant, but when I received my kit there was a small brown sticker on the GPIO header on the EINSY board. I had to remove it to insert the Pi. Does that sticker indicate the header may have been bad...?


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Hi Wesley,

are you sure the pins are soldered correctly? The Raspberry itself it running ok? If you have a power supply for the Pi, try to run it separately.

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Wesley Campbell will be eternally grateful.
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