Step-1: Download XXUBMG8 Android 4.2.2 Jelly Bean official update for Samsung Galaxy S2 Plus to the computer. Step-2: Extract the downloaded firmware zip using winrar/7zip/winzip or any other As expected from any major firmware update the Android 4.2.2 Jelly Bean firmware for the Galaxy Grand Duos brings a lot of new changes, features and some bug fixes. Some of the major features this new update comes with are as follows: Now you can change device name from Settings> More> About and then by tapping on “Device Name”. More…. kbCAxa.

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