Hi AnaisaP, for many phones, rooting does allow you to change the android version by flashing a custom recovery and flashing a rom. For this phone, we are stuck with 2.3.x (I have heard some people have 2.3.5 with this but mostly it is 2.3.6) because we don't have custom recoveries since many of our phones' bootloaders are locked. We have an unstable custom recovery which is tethered, but there is no rom development either :/
The straightforward answer is unfortunately no, or not yet, and so, an app intended for 4.0 won't work for our phone even if rooted.
Also, does anyone know how I can unlock this phone for free? I tried an unlocking service and they asked for $40, and they still haven't found the code. (been 5 days)
Samurai wich model do u have? if u have u8680 can u upload your image folder please?