Kicking off Sony’s Android 4.1 (Jelly Bean) rollout for Xperia J | Sony Smartphones

Hello everyone, a quick note to let you know about the Jelly Bean Android 4.1 upgrade for Xperia J –... ... Sony Xperia U is unusable after the last android 4.0.4 upgrade battery life is hopeless there are connectivity problems all the time the phone has

blogs.sonymobile.com