Hi, i also have a board like this and also had trouble with the inductive sensor, the problem is that on this board the pullup resistors are soldered to the board so what you do in the config file does not matter. The resistor is just left of the ZMIN Endstop connector, there are 2 one is for current limiting to the microcontroller and the other is the pullup resistor. You need to use a solder irby slave2anubis - Controllers