I have the Korean Broadband LTE A version of the Galaxy S5 (SM-G900F) and i want to update it to Marshmallow (it's on Lollipop currently). I went to setttings>system updates but all i got was "your system is up to date". I installed Kies on my laptop and tried updating my phone from there, but all i got was "your system is up to date" again. I had done some research and found out that marshmallow was being rolled out for my phone in May, so i know for a fact that my system is not up to date. Can someone on here please help me update my phone?