Fystec_e4_map.h has esp32 pin GPIO34 triggering both x limit switch and estop

[juansal32]

Hello everyone,
I need some help with my compiled files from GRBLHAL Web Builder (http://svn.io-engineering.com:8080/).
When I press the x axis limit switch it activates both the x axis limit switch but also the e stop.
After a few days of digging I stumbled upon https://github.com/grblHAL/ESP32/blob/master/main/boards/fysetc_e4_map.h
and noticed that both the estop and x limit switch are triggered by the same GPIO34 pin, kinda weird. I have divided up and traced the GPIO pins on the ESP32 and there are two pins unused which are GPIO pins 1 and 3.
I have downloaded the file in the link above and simply changed GPIO34 to GPIO3 for the Reset/Estop pin. My question is, where does file go to from the three files from the web builder? Firmware? Bootloader? Partition? My next question is how to get the edited file into the correct file? When attempting to opne any .bin file, it;s only symbols.
Any help would be fantastic!