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Ulticontroler doesn't work

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I've just finished to assemble my ultimaker, but my Ulticontroler seems to not work.

I saw in the FAQ the problem with empty screen (Blue), but I've got the reverse probleme :

IMG 2649[1]

It's hard to take a screen in picture... We can't see well, but all square are white.

I havn't tried to reverse the wire yet.


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In hindsight, the 2 cables are not the best solution. A single ribbon cable would have been easier (and most certainly just as available, as we used tons of 20 wire cables on my previous job)


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