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Just like any update there isn't an specific release date for each country/network
http://www.sonymobile.com/global-en/software/phones/xperia-l/
Latest available software
You may already have the latest software, depending on the date of purchase. Software updates are released at different times depending on operator and/or country. Therefore, we cannot give you an exact date for when a specific update will be available for your device.
If you can not wait for the update then you can manually update your phone to the latest firmware
How to manually update, downgrade, root 2013 Xperias
http://talk.sonymobile.com/thread/124152
If you encounter any bugs after the latest update, it is recommended to re-install the latest update
Bridge (for Mac)
Alternatives on How to backup Xperias
http://talk.sonymobile.com/thread/36355
better if they fix bugs and add features, but good if it's a bug fixing firmware....
we should wait for the official release on the site for a better support i guess... to know if it's good and better.
15.3.A.1.12 firmware keeps Xperia L C2105 and C2104 on android 4.2.2 only and is a major update, already confirmed in Malaysia, Pakistan, Germany.
Xperia L 15.3.A.1.12 Firmware Update Changelog/Features
FTF links will be uploaded soon.
A new firmware version for the Xperia L (C2104, C2105) has been released with build number 15.3.A.1.12. in INDIA TOO UPDATE THROUGH SUS This new firmware version is still based on Android 4.2.2 but includes some performance improvements over the previous build (15.3.A.0.27)
yep just before 30 mins started downloding 