In my camera an additional black tape is securing the ZIF connector and the orange ribbon cable. After pulling it off I could flip the ZIF connector open from the side of the ribbon cable. A magnifying glass was very helpful.

Actually it’s not that simple. I was stuck here until I realised that two more screws need to be loosened. See step 10 and loosen the bottom one behind the port cover and step 12 loosen the bottom right one. This is why you need to peel the leatherette skin in step 4.

The two srews on the left can be left in place as these just keep the tripod mount fixed to the bottom plate. (see pictures at step 7)