So my dad and I both have the Samsung Galaxy S II LTE Skyrocket from Rogers; I727R. A couple days ago I updated mine via Kies from Gingerbread 2.3.5 to Jellybean 4.1.2. Today I tried updating his (also GB 2.3.5), but once I connect his device, Kies says it already has the latest firmware.
I am using Galaxy S4 and unable to update my phone OS from jellybean 4.2.2 to Kitkat. I bought this phone from Dubai in 2013 and using in India. When I try to update software through wi-fi or Kies, it always tells me that I have latest version.
Can anyone tell me why I am facing this problem and how can upgrade OS?