First layer calibration loop
I recently had to take my top end apart to fix a small problem with a loose hotend, and upon rebuilding and calibrating the first layer calibrator gets stuck in a loop where it asks for filament to be inserted even when it has been in the same session. Should I reflash the latest update? Is there a hard reset?
could your filament sensor be on the edge of working, and giving false signals?
there is a sensor spacer for the mk3S filament sensor
check your sensor status
I think you might be right, when I was rebuilding it I just looked up the EINSY board photo on the knowledge base. The filament sensor is the only thing I had some confusion about since it has no "keying" to its male end. I might have put it in left handed instead of right handed.