Chosen Solution
Cmos replacement directions
@dbboldrick since you already ordered it you might as well look at this video about the extent it takes to get it done. Remember that this can also be caused by issues with the memory card, as well as bad RAM and multiple other issues. Post some images of the connector you are unsure about, with your QUESTION. Let’s see what is going on with it. Adding images to an existing question
@dbboldrick - OK, did you try cleaning the sensor or bang into it? The sensor is one possibility but there are a few others. I would bring the camera into a Canon authorized service station or Canon directly. They will be able to diagnostically isolate out what has failed. I’ll warn you this could get expensive.