I'm trying to upgrade the control board in an UP Mini 2 to a Mini Rambo 1.3a board, and initially, when I connected the screen and flashed the Marlin firmware the LCD screen was working as expected. But for some reason, after a day, the screen is now only showing bars on the 1st and 3rd lines of the LCD.
I've tried enabling "#define REPRAP_DISCOUNT_SMART_CONTROLLER", but nothing changes the screen output.
I've tried swapping the cables in all directions, but nothing works.
I've tested this LCD on my Prusa, and it works there, and I've tried my Prusa's screen on the UP Mini, and it still just shows blocks.
I've looked through all kinds of forum posts about this type of problem and not found anything that helps.
I've attached my Configuration.h file. Let me know if there's anything else I should include to help.
I've tried enabling "#define REPRAP_DISCOUNT_SMART_CONTROLLER", but nothing changes the screen output.
I've tried swapping the cables in all directions, but nothing works.
I've tested this LCD on my Prusa, and it works there, and I've tried my Prusa's screen on the UP Mini, and it still just shows blocks.
I've looked through all kinds of forum posts about this type of problem and not found anything that helps.
I've attached my Configuration.h file. Let me know if there's anything else I should include to help.