Re: controler does not work anymore

BOARD_MKS_BASE_15 is a standard motherboard in Marlin


You Download Marlin
Set #define MOTHERBOARD BOARD_MKS_BASE_15

compile and upload

This should talk over serial.

then you need to customize marlin for your printer to do anything useful


It would help if you listed the printer type. A quick google shows several different HE3D printers