Kenmore oven (790.47892602) just died (F11 code) the day before Thanksgiving

Brand: Kenmore (Wall Oven)
Model Number:790.47892602
Main Symptom: F11 code and will not power on
What happens & when: This F11 code has been intermittent for a while. I would cut the over off at the breaker box and the F11 code would clear. Its not and its the day b4 Thanksgiving.

Its a wall over and I have taken the upper control panel. The internet searches all discuss a traditional over unit which recommends cleaning the contact pad. The wall oven unit is different

Error Code (if any): F11
Parts or tests already tried:
Photos / video link: how do I upload a photo?

The F11 usually refers to an issue with the touchpad (keypad) or the control board assembly. Inspect the wiring and the ribbon cable for damages or loose connections and repair or replace as needed.

https://www.appliancepartspros.com/repair-help/ranges-stove-oven-repair-help

where do I get a new control board assembly?

Ribbon cable is fine. I can’t get to the touchpad since its a wall unit and its behind glass and I can’t get to the back of it. If I could upload a photo I would

This is one you will need to pull it at least part of the way out of the wall and get to it from the top or side.