I recently installed the 4.0.6 build in an attempt to get my BLTouch Smart V3.1 to work. I have checked the connections and it seems the BLTouch works when I self test, probe up, down. It is a solid red when I start it up, however, I cannot level because the printer will no longer home the Z-axis correctly.
The Bltouch is confirmed genuine.
Aldi Balco Touchscreen Belgium
Also something I noticed was the bltouch sensor in the top bar of the lcd screen is grey and not orange as I see in a lot of your screenshots. I haven’t been able to figure out what that means.
Any help is appreciated.