Sony Xperia M Dual C2005 Android 4.3 Jelly Bean Update Available via Sony PC Companion.
In a streak to stay updated with latest version of Android, Sony Mobiles has released 4.3 Jelly Bean update to Xperia M Dual smartphone. Although you have to work a bit harder in getting this update to your phone as its only available via Sony PC Companion, not via Over the Air download.
The Xperia M Dual 15.5.A.0.18 firmware is currently available in Brazil and some countries in Europe as it turns out to be region wide update. The file size of the update is said to be 770 MB and it brings additional Xperia user interface and Xperia themes.
The update includes feature enhancements to Walkman app, Movies and Album apps. Furthermore it brings out bug fixes, security fixes and performance improvements as slated on the changelog. Read more at the source site.
How to Update
Download Sony PC Companion tool on your computer and you should also have USB cable along with you. Connect one end of USB cable to PC and other end to PC and PC Companion tool will automatically detect and notify you of update availability. Follow the on screen instructions to complete the update and estimated time for updating is about 30 minutes to 1 hours depending on your internet speed.