Quote: But this menu doesn't seem to lead to many adjustment options for the AF, SR, video etc etc, just information and tests. There is probably a 'service and adjust' set of menus lurking somewhere else in the firmware.
[VLENS_CONTROL] should open the lens config menu.
Quote: I can confirm this DOES NOT work on a K-5 II. However, it also doesn't brick your camera :P
Maybe because I posted the wrong filename

(updated now) or because the product id (77650) is different on your camera, the debug id (524) as well. You can find the product ID in some Pentax sales literature, you could then guess the last three digits.