: A binary file with a .dat extension (the actual system software update).
When you download a firmware zip (e.g., PXW-FX9_V402.zip ), it generally contains: Download sonyfx9 zip
Always format your SD card in the camera before copying the unzipped .dat file to the root directory for an update. Firmware: PXW-FX9 V4.00 | Sony USA PXW-FX9_V400.zip. 351MB. 2022. PXW-FX9_V400.md5. 32B. 2022. Drivers and Software updates for PXW-FX9VK | Sony USA : A binary file with a