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Hey guys, I solved the issue after i got back home. Turns out that I plugged in one of the LCD ribbon cables into only half the corresponding pins. Rookie mistake

Thank you for your help though.

drunkenmugsy wrote:Pics of the LCD board and cables might help. Also of the LCD card placement on the rambo. It sounds like cables may be backwards?

Here is a pic of the LCD when I'm turning the knob. Will have the pic of wiring when I get home.

You have a old version of Arduino (1.05). You should try at least version 1.06 or even the latest version which I believe is 1.6 or something like that. Hmm, I will try that when I get back home today. I've downloaded the 1.05 one because that's what was used in the assembly guide (wanted to follow ...

Hey guys, I just finished physical assembly of Rostock MAX V2 (my first 3D printer!), and I am hoping to get some guidance on the issue that I am having. Basically, I cannot get past uploading firmware step, because LCD panel inputs are not working properly, so I am suspecting something is wrong ...