Chosen Solution
The teardown Step 7 third picture yesterday showed a picture with three encoded numbers on the bottom of the camera module. The second number yesterday was 23XGDD. Today it is 31N07D. Did someone substitute the picture to mislead? Are you showing a part from a second teardown? If you still have a copy of yesterday’s picture, did it have 32 pins?
you’re right - the first teardown was made with my “not that perfect” equipment - luke from ifixit got his 4s later than me and started the same thing, so some pictures have been replaced by better ones and yes, it has 32 pins
have you figured out which cmos sensor is being used? Omnivision/Sony?