Android 2.3.6 este versiunea maxima.
Uite:
The Galaxy Gio originally came with Android 2.2, with Samsung's TouchWiz user interface[3] but users can upgrade to Android 2.3.6 via Samsung Kies and by now (October 2012) Android 2.3.6 is preinstalled on many Gios sold throughout the world. Android 4.1 for Gio has not been made available by Samsung yet[when?], though an upgrade is possible via Root and ClockworkMod Recovery.