Remove the black tape (in these pictures it has already been replaced by polyamide/kapton tape).

Gently unpeel the FPC ribbon cables from the body.

The stepper motor under the black tape is for the aperture iris.

Note the iris cable doesn't need to be removed unless you are disassembling the iris/stabilisation module. There is a blob of glue under the connector on the iris FPC. Rather than trying to unplug the connector it can be carefully pried up.

FPC Marking: XL1406 Switch FPC Rev04 DREH13UM

FPC Marking: XL1406_IRIS_FPC_Rev03 UFK144512