Upgraded to 1.2.1 - Messed up controller and probing

Thanks for getting back so quickly. I am not a novice on forums (or computers for that matter) but yes I used the search previously and my brain got overloaded with everyone else’s problems.

Yes that solves the probing errors, user error with the size of my piece and trying to anticipate carve-able areas bit me.

How about the controller problem? That post has nothing to do with my issue.
This one does appear to be the same issue, but the solve appears to be to take my controller apart and flash the SD, which the instructions say is for advanced users only.