Nikon Z 9 - Slot Empty Release Lock

747
B
The Setup Menu: Camera Setup
Choose whether the shutter can be released when no memory card is
inserted in the camera.
Slot Empty Release Lock
G
button
U B
setup menu
Option Description
a
[Release
locked]
The shutter cannot be released when no memory
card is inserted.
b
[Enable
release]
The shutter can be released with no memory card
inserted. No pictures will be recorded; during
playback, the camera displays [Demo].