Can you connect it directly using the pronterface and control the printer movement? If it does, means the board is okay with the correct settings (hopefully), I'm assuming you're using the 20 x 4 lcd controller.
This lcd often referred as 2004 lcd controller or reprap discount lcd controller. Uncomment the line stating reprap discount controller.
Also not to forget to copy some other settings from the seller like steps per mm, accel rate, pid values, thermistor type, and etc,
But not to copy all the config from the seller, it mostly won't compatible with the current marlin you use