#13. "RE: D800E Lock Up Mirror For Cleaning Alert" In response to In response to 11 Sat 17-Nov-12 06:47 PM by briantilley
Yes - I think the problem here is that Lock Mirror Up is not available when a particular value has been chosen for one Custom Setting, so the fix is to select a Custom Setting bank where that value has not been selected.
My point is that selecting Bank D would only be a fix if that Custom Setting (whatever it may be) is still set to its original value.
I have read elsewhere that Custom Setting g4 may be a possible culprit, but as I don't have a D800 I can't check it myself.