Sony PXW-FS7 Manual page 6

Firmware Update Procedure: PXW-FS7
Copy the update system software onto the Media Card
(SD/SDHC)
Remove the media card (SD/SDHC) from the camera after
formatting the media, and insert it to your PC/Mac.
Depending on your PC/Mac environment, execute one of the
following procedures to copy the update system software file
(PXW-FS7_V100_1.01_50_2014-11-05_18-57-
00_firmware_SSB.bin) to the media card.
November 2014