@OwenD Yes! I didnt noticed the typo either. Ok, will add this and try it further but question remains regarding why is this happening, it started after falshing the new raspi image and version 3.5.2. Can you confirm there should not be a problem using the 64 bit version on my raspi? because there are other problem like for example DWC not starting on my touch screen, there is just a linux desktop instead (DWC working through web interface conncection)

@chrishamm , Thanks for the quick follow up, appreciate it! Linking the github issue for those who may want to track.

Allright, bridging the Top Pin (NC on the PCB) to the bottom one (io3.in) did the trick.

I had to invert the signal but other than that no changes were necessary on my firmware configuration.

For future reference and anyone who is trying to do something similar:

M950 J1 C"!^100.io3.in" ; Tool1 docking detection GPIO setup

Is the command I use now.

@t3p3tony
I appreciate this link!