The Android 4.3 Jelly Bean official firmware update has started rolling out to Sony Xperia SP.

Earlier last month, XDA recognised developer DooMLoRD had shared the screenshots of Android 4.3 update running on both Xperia T and Xperia SP. Following this, the developer made available the leaked firmware for both the devices, indicating the official update is nearing.

Meanwhile, Sony has confirmed through Twitter that the company was 'making final preparation for Android 4.3 for Xperia T, TX, V and SP. The update will start rolling out sometime within January end to early February.

Now the Android 4.3 stock firmware with build number 12.1.A.0.266 is rolling out to Xperia SP bearing model number C5303. The update is currently available for Vodafone subscribers in Australia, according to XDA. It is also available in Malaysia and UK through PC Companion and via SUS.

As the update roll out is a phased process, it will not be available for all users at the moment. The timing and availability may vary depending on the market and carrier.

Senior member, Mahthenewgamer1998, has shared an FTF of the latest Android 4.3 12.1.A.0.266 update. Those users, who cannot wait for the update to reach their region and wish to install the new firmware build, may find the stock firmware links from here.

Firmware details

Model: Sony Xperia SP C5303

Version: Android 4.3 Jelly Bean

Build number: 12.1.A.0.266

Kernel: 3.4.0

Baseband version: 8960A-AAAAATAZQ-40031007-16

Sony is yet to provide the Android 4.3 for Xperia SP official changelong. But Xperia Guide has so far confirmed a list of new features for the device, which includes,

1) White UI like other Xperia handset running Android 4.3

2) New Sony Smart Camera app

3) New Sony Media apps with updated versions

4) New downloaded Xperia themes

5) Xperia stock wallpapers

6) New Xperia home launched

7) Smoother UI

As the latest Jelly Bean software is now available for Xperia SP, Sony is expected to release the update for other Xperia handsets as well.