How to Update from Gellybean to higher

[shivasankar92]

I'm using samsung galaxy S Duos 2 running with gellybean OS.

I want to upgrade my os to kitkat.Normally click the software update via settings that showing already up to date.

There is any way to update ?

 

[hallux]

You'll need to install a custom ROM to do that. SamMobile, while not Samsung, is a pretty reputable site for info on Samsung devices and it is indicated there that 4.2.2 is as high as it goes (from Samsung).

Android isn't like Apple, just because there's an OS update doesn't mean that ALL devices will get it. The manufacturer needs to build the update with the necessary "drivers" to support the hardware in the device. Sometimes you'll get lucky and there will be 3rd-party developer support and someone else will build the ROM to update the device but that comes with its own risks.