Im using the D500 and updated the firmware from 1.12 to 1.14 now nothing displays on the rear screen, and im getting a flashing err on the top display anyone offer any help please?
Did you skip update 1.13 by updating from 1.12 directly to 1.14? If so, here's hoping you did not brick the camera. You need to contact Nikon and talk to them. You might want to also look at:
To brick a camera means to turn it into something as useful as brick. Since Nikon Wants the camera back, this would seem to indicate the update "Bricked your camera!"