Anything (apparently) useful there?
I'm not expecting "enable RAW" and "enable manual focus" checkboxes, just something maybe. =)
Well, yes, you can enable RAW mode as far as I've tested, but only with a quirk. With manual focus - no luck.
Note that step 2 from altwho's post is not required - you can actually enter in the service menu anytime you want once the SD card has the HiddenMenu folder on it by entering the normal setup menu and going to reset option. From the description he gave I had the impression that it was the normal way to start the camera in service mode, but apparently he had the batteries removed from the camera for a long time so date and time settings were lost.
Now, for the RAW mode, start the camera with the hidden menu and go to the "DEBUG" menu (there is also a debugmode - this is not OK). In the debug menu you have the option to turn on SAVEfullYRGB. Default value is off. If you enable the option, the camera will save the raw image (if you have also SAVEfullJPEG on, the camera will save both raw and jpg format). But once you turn off the camera, the camera defaults to normal jpg saving - so that's the quirk. Each time you want to save in RAW mode you have to enter into the debug menu.
Also, the saving time for the raw file is much longer than for the jpg file (in fact, the file is 10 to 20 times larger than the jpg file so also the writing time goes up). With my card, which is just and old SD card (like speed class 1), the saving of the raw image took about 20 seconds. I should try it with higher speed class card when I'll get one in my hands.
For manual focus - there is an option in the DEBUGMODE menu, but I could not figure if it's doing something. In time - I'll experiment with some other options in the service menu.
Later edit - now... there is the problem of opening Fuji RAW formats... as far as I've seen, the Fuji RAW (RAF) world is quite small and closed - so getting from a camera a format that it was not supposed to be supported only begs for further sleepless nights....