Is this firmware version 1.1.9 or 1.1.0009?
The name of the file that you download from DJI is Phantom_3_Advanced_Firmware_v1.1.9_en.zip
But when you unzip it you get a bin file called P3S_FW_V01.01.0009.bin.
You have it all correct. The firmware is version 1.1.9. Their naming convention for the .bin file makes it a little hard to know you have the right thing. You do though.