Viewing the Camera Firmware Version:

- Turn the camera on.

- Press the camera MENU button and select Firmware version in the SETUP MENU to display the camera firmware version.

- Check the camera firmware version.

- Turn the camera off.

Updating the Camera Firmware:

- Create a folder on the computer ... the package to extract a .bin file (the camera firmware) to a folder named “D500Update”

- Using a ... memory card that has been formatted in the camera.

- Insert the memory card into the Slot 1 on the camera and turn the camera on.

- Select Firmware version in the SETUP MENU and follow the on-screen instructions to complete the firmware update.

- Once the update is complete, turn the camera off and remove the memory card.

- Confirm that the firmware has been updated to the new version. 

About Digital Camera Updates:

Updating to a newer firmware version than the one already installed on your camera can improve the device's overall performance and stability, ... existing ones.

On the other hand, downgrading the camera's firmware can recover its functionality in the unlikely event ... be possible.

It is recommended that changing the camera's firmware be performed when the new release resolves an ... personal data and configurations before applying a different firmware. Moreover, make sure that the battery is fully charged and don't use the camera's buttons while the installation is in progress.

When ... the update method, usually, you must copy the firmware file onto a compatible memory card, insert it into the camera, and browse from the menu to the device's ...

That being said, if you consider that this firmware improves your device in any way, then hit ...