EFTZ21 Firmware Update


  1. Download the firmware.
  2. Unzip the file if it is in zip format. When you see the file is in .bin format it’s already ready to use.
  3. Copy the .bin file and paste it onto the top directory of a formatted XQD/CF/SD card. Do not change the name of the .bin file.
  4. Mount the ETZ21 Pro and and a Sony lens onto the camera.
  5. Insert the card into the camera.
  6. Go to ‘Setup Menu’ -> ‘Firmware Version’ -> ‘Update’. Do not switch off the camera while updating.