reprad smart lcd display

If it is a 4 line display, just plug it in per the instructions and turn your printer back on, it is enabled by default in the Marlin firmware and nothing needs to be done. Matt from PrintedSolid can give you more information.

 

If it looks much like this:



Just plug it in like @WheresWaldo mentioned.

The larger, more square one (called the full graphics LCD) requires firmware updates:

 

You need to follow the instructions here:

http://community.robo3d.com/index.p...-lcd-controller-blank-screen.8061/#post-70529

To edit the configuration.h in the firmware source and recompile and reupload before that will work.

Summary:
1) download the marlin source for your version of the printer (there IS a difference so make sure you get the right one for an R1 w/8mm rods or the R1+ with leadscrews or the beta with 5/16 rods).
2) download the arduino compiler from arduino.cc
3) unzip firmware source code and edit the line in configuration.h as the linked thread details.
4) use the arduino compiler to compile and upload it to the printer

 

I dont think Matt sells the full graphics? Just the reprap XXL????? @Printed Solid

 

There is a link in the error code that shows you where to get u8glib. That library needs to be installed in the Arduino IDE.

 

Arduino mega 2560