You may need to apply adequate force to remove these screws and be careful not to strip them as they are relatively weak.

Using a PH0 Philip’s screwdriver, unscrew and remove the four 1.2mm Philip’s screws on the front of the E-mount.

These screws are very small so make sure you do not misplace them.

If a screw is stripped, you will need to refer to the ifixit stripped screw removal guide