@Zax there is a trace coming out of the A5 pin most likely it is connected to pr pins. so its probably software issue.

Are any of the settings wrong:
BAUD RATE: 115200
GRBL0

how can i do further troubleshooting ?

is there anything i am doing wrong then

1. connect two jumper wire to the pr pins
2. connect those wires (one to copper board other to mill bit)

i mean i checked the connectivity with my multimeter so problems not there i can only think of either the firmware on my cnc or the software i am using or maybe i am connecting them wrong. is there any other software to test probing/auto leveling so i can test if the problem is cnc based or not

i have connected 2 wires to the probe pins and connected one to the copper board and another to the mill bit. I am using bcnc and when i try to autolevel the head goes down makes contact with the board but it doesn't stop and bcnc software gives me an error "ALARM PROBE FAILED" i disconnected the wires and checked them with my multimeter and yes board and the mills head are connected. i think somehow the microcontroller can't read that probe lines are connected and if not how can i test if the microcontroller sees this.

What am i doing : around 7:30 of this video

@Zax universal gcode sender it cuts perfectly y and x are accurate now but there is the problem with y it still cuts but it takes double the time since its doing half of the turn not doing anything

@Zax thanks i have another problem with z when i set it up to be 8 mm deep when it starts it goes up by 4 and only goes 4 mm deep and does 4 empty turns

what are the commands i should send?

when i move the x , y or z motors by 6 cm with universal gcode sender they move about 1.3 cms how can i get them to move their own size