Remove one 1.5 mm circlip and shim washer.

Remove mirror release latch assembly.

The third image shows the stack up of components in the assembly, bottom to top. This can be quite difficult to get back together properly. It may be easier to reinstall it on the post piece by piece, rather than to install as a complete assembly.

Installation Notes: Make sure this arm of the latch sits to the right of the power switch lever. This is the mechanism that turns on the light meter when the shutter button is half-pressed. Also pay attention to the attachment points of the bias spring.