I have a Samsung Galaxy S Duos which is running on Android version 4.0.4. It can be upgradable to version 4.1 but whenever I check for software updates on my phone, it says 'No updates available'. Why does this happen? Is there any other way I can update OS? I want to update because my phone lags and crashes a lot lately even when it's idle and I don't have many apps installed.
Thanks.
Thanks.