How do I upgrade the software of my Samsung Galaxy S2

Hi;

I have Samsung Galaxy GT-I9100 and currently Android 4.0.3 OS is running. I want to upgrade the software with latest Android one. Please guide how to do it.

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› See More: How do I upgrade the software of my Samsung Galaxy S2

Do you mean to Jelly Bean 4.3? You'll have to root the phone and install a custom rom to do this. I recommend you start reading here: [ROM][GT-I9100][JB][4.3.0] CyanogenMod 10.2 official nightly builds // discussion - xda-developers