I've previously used the Dust Detection, but now greyed out and not working.
I've reset my M-P, used a fresh charged battery...but still no luck.
Can't find anything in the manual.
up to date OS 2.0.3.0.
Tried various file recordings, eg DNG, DNG+JPG, etc.
Sensor Cleaning opens the shutter.
But no luck getting the Dust Detection to work.
Any help greatly appreciated...thanks.