I accidentally set the parameter $120 (X-axis acceleration) to 0 in LightBurn. After that, the controller stopped communicating with the computer. Since the console no longer responds, I can’t issue a reset command to restore the default GRBL settings. What is the proper procedure to recover the controller in this situation?
Maybe check if the COM port has changed. An incorrect setting should not prevent the board from booting.
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My machine has a touchscreen, and after observing that pressing the reset button on the mainboard, in combination with accessing the ‘Projects’ menu of machine, was causing movement on the Y-axis, I connected the USB cable, launched LightBurn, performed a reset on mainborad, and entered the ‘Projects’ menu in the machine. At that point, LightBurn successfully established communication with the machine. I then issued the reset command via the console: $RST=$. This solved the problem. Thanks for the help.