Firmware upgrade for Galaxy S Advance, Android 2.3 to 4.1, audio: English
Firmware/software upgrade for Samsung Galaxy S Advance GT-I9070.
Buy from here: http://www.pcgarage.ro/smartphone?use...
It includes operating system upgrade from Android 2.3.6 Gingerbread to Android 4.1.2 Jelly Bean.
The procedure is similar and can be applied to almost all Samsung Galaxy Smartphones with Android and a lot of other models.
The link to software is http://www.samsung.com/KIES