From Xperia blog, we found that Sony’s Xperia M smartphone gets Android 4.3 Jelly Bean update; the build version 15.4.A.0.23 that comes with new enhancements and features. The latest firmware appears with a refreshed camera interface carrying burst mode and superior auto shooting mode, smooth UI and graphics improvements, a new version of battery STAMINA mode for extended battery life.
The new Android 4.3 build brings also enhanced security features and multimedia apps updated such as Album, Movies and Walkman.
To check the availability of the update for your Xperia M phone go to Settings -> About phone -> Software updates -> System updates. To avoid data traffic, it is recommended to use Wi-Fi connection.
For the Xperia M dual we have not noticed any sign that the update has rolled out yet, the product page still applies the earlier firmware.
