Official Jelly Bean Update for the Samsung Galaxy S II I It's no secret that Samsung has dropped the ball in some areas such as. Here's some ways to update your firmware, from easiest to harder (not Google on how to flash a stock / custom ROM for Samsung Galaxy S2. Update Galaxy S2 I to Android XWLST Jelly Bean firmware. Back in April , Samsung officially rolled out the Android The Indian Samsung Galaxy S2 (model number GT-I) is being officially upgraded to Android Jelly Bean as we speak. Samsung's previous flagship smartphone, the Galaxy S2 aka GT-I, has finally picked up the Android Jelly Bean update. 11 Parts: Before Updating to Jelly Bean, Make Sure: Rooting Your Samsung Galaxy S2 Files You Will Need To Root Your Device Important: Enable USB. Samsung has yet again released a new firmware update for Galaxy S2 I; Android Jelly Bean Official Firmware for users.