Nikon released firmware update version 4.01 for the Z9 camera. Here is the list of fixes:
- The camera would in rare circumstances stop responding or fail to record a video correctly if an attempt for video recording took place after the standby timer had expired then reactivated with [Frame size/frame rate] set to 1920 × 1080 in the VIDEO RECORDING MENU.
- The [Choose image area] and [Switch FX/DX] roles assigned to camera controls were disabled when a slow-motion video option was selected.
- The first shot in burst photography would sometimes fail to acquire appropriate white balance when [Auto] or [Natural light auto] was selected for white balance.
- If shooting continued while [ON] was selected for [PHOTO SHOOTING MENU] > [Photo flicker reduction], the photo live view display would be partially disrupted.