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If you got the ramps from me it is preflashed. If you don’t have a screen you can still flash the lcd enabled firmware just add the ug8lib to your arduino library. If you want to comment it out look at the config.h towards the bottom and look for “reprap discount full graphic lcd //mpcnc” then just add “//” to the front of that one line like the rest you will see it change color.
Non need to use and older arduino ide the current works fine.