1.03 or earlier/ B firmware Ver.
Modifications enabled in this version, support for the AF-S nikkor 800mm f/5.6E FL ED VR has been added.
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Basic Firmware Upgrade Instructions, power the camera from AC adapter unit or use a fully charged battery.Format the memory card with the camera and repeat steps 4 through 8 to update B firmware.Press the menu button to display the menu screen.Microdrives cannot be used to perform this firmware upgrade.If the update is not completed successfully and the camera becomes inoperable, take the camera to a Nikon-authorized service representative for inspection.If you require more support, use the detailed step by step instructions which contain helpful images linked below.
This service provides software for upgrading D300.
Insert the memory card containing the firmware in the camera's memory card slot and turn on the camera.
Precautions Immediately after updating D300 firmware from A and B firmware Ver.Important, the camera may be damaged if power is interrupted or camera controls are operated during the update.How to verify your cameras current firmware version.End User License Agreement Accept Accept.1.10 or later, the ISO sensitivity settings ISO sensitivity auto control Minimum shutter speed setting will shift to a faster shutter speed.Firmware Upgrade Instructions, if you are comfortable with the process to upgrade your camera, use the basic instructions.