Best firmware for NX10 + lenses?

Got old firmware for NX10 and the 50-200 (and the 30mm I think). What are the best/latest firmware updates and where can I find them? Must have to get the option to turn off OIS (50-200 faulty with OIS), no such option in camera now. For NX10 I find - at Samsung - version 1.32, but when I download and open I get a video in Windows Media Player. DjVu viewer not to be found and got Adobe, but this does not work.