# Anet A8 display on MKS Gen L board [duplicate]

So I have read this question, Connecting (Anet A8) 2004 display to MKS GEN L.

That looked so easy, so I rewired the connectors and switched the VCC and GND pins. In the Marlin firmware I disabled the MKS GEN L display and enabled the ZONESTAR_LCD and ULTRA_LCD.

Yet when I run the printer, I only get the fully white rectangles. Is there anything else I have to do?

I have a compilation warnings now, because the ZONESTAR_LCD redefines some of the pins that ULTRA_LCD sets, but I guess that is ok. Could it be caused by still including the U8glib library? Do I have to also remove some constant regarding this?

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