Sony released a further firmware update for the F5 and F55 on Friday. Version 1.13 adds EI exposure index modes to the Cine EI mode and the ability to trigger the record start and stop from the Hirose 4 pin power ports. In addition LED 4 can be assigned as a record indicator and there are some improvements to the cameras noise reduction in standard modes.
http://community.sony.com/t5/F5-F55/NEW-Firmware-v1-13/m-p/120839#U120839