Before attempting an update, verify what your camera is currently running: Turn the camera . Press the Menu button. Navigate to the Setup Menu (the wrench icon). Scroll down to Firmware Ver. Check the numbers for A and B. If both show 1.03, your camera is fully up to date. Why Update the D50 Today?
If you see , you are running the final official software. If you see Ver 1.00, you can update, but the changes are minor. nikon d50 firmware
According to Nikon’s official release notes (circa 2006), the update from earlier versions to A 1.01 / B 1.02 provides: Before attempting an update, verify what your camera
Regardless of how you got it, you might be wondering about the "brains" of the camera: Scroll down to Firmware Ver
Unlike Canon’s CHDK or Nikon’s later “hacked” firmwares (e.g., Nikon Hacker for D90/D3/D700), the D50 never received any community firmware modifications. What you see is what Nikon shipped.