This error is such a pain. I have tried all of the recommended solutions and nothing fixes it. Now I just try to ignore it but it is so odd and my prints are fine.
What I don’t get is now that I don’t care about it, it pops up and goes away so randomly. Sometimes I’ll go ahead and do a calibration and a couple prints with no error. Bear in mind that I no longer do the thing with loosening the screws on the back and all of that. I just run a calibration. Then, a few prints after the calibration the error comes back and sticks around for a while. All of the sudden, it will go away for a few prints and then come back later. Sure seems like a bug somewhere if it just goes away without me doing anything different from print to print.
I guess I could put in a ticket but this is so hard to replicate and I don’t see evidence in prints of the issue. Mostly I’m frustrated because I recently installed the BLLED controller for extra lights but I’m living in the red light district a good chunk of the time because the machine is reporting an error with no way of resolving.