Nikon Z 5 Reference Manual page 83

A
The Write Protect Switch
•
SD memory cards are equipped
with a write-protect switch. Sliding
the switch to the "lock" position
write-protects the card, protecting
the data it contains.
•
A "–––" indicator and a [Card] warning appear in the shooting display
when a write-protected card is inserted.
•
If you attempt to release the shutter while a write-protected card is
inserted, a warning will be displayed and no picture will be recorded.
Unlock the memory card before attempting to take or delete pictures.
Inserting Memory Cards
41