Leica X1 suddenly had a serious fault (2020)

In August 2020, my Leica X1 developed its first fault which rendered the camera unusable. I bought the camera new in 2010 and it has served me well for over ten years. It has never failed before. I have treated it with care and it lives, when not in use, in a padded case. However, most electronics equipment fails at some time during its active life. My Leica X1 decided that it could no longer focus the lens. Neither could it remember how to retract the lens when not needed. The full story is told here