rgrenaderphoto wrote:
Bummer. The D850 is supposed to be a weather sealed camera, that being said, like the above, seems like condensation in your camera from being under your coat. Take out the battery and lens, leave all the flaps and doors open for a few days in a climate controlled room where there is no air blowing directly and see what happens.
If that doesn't work, send it to Nikon in New Jersey for a look. If it is a defect, should be under warranty.
I agree - there may still be hope. I have seen multiple cases where an LCD display that went either completely blank or black after being exposed to moisture “recover” slowly as it dried out until complete functionality was restored a week or so after the exposure.