Nikon D850 Firmware Update Version 1.21 fixes an issue about firmware updates. The new firmware updates version 1.21 for Nikon D850 and Z5 cameras are now available for download.
Changes from “C” Firmware Version 1.20 to 1.21
- • Fixed an issue that in rare circumstances resulted in vibration reduction failing to function after the firmware was upgraded to version 1.20.
If you have not upraded yet, here is the previous major firmware upgrade for Nikon D850 DSLR.