Android 5.0 Lollipop AOSP, Binaries Released to Sony Xperia Z3
Android 5.0 Lollipop AOSP, Binaries Released to Sony Xperia Z3, Z2, Z1 [Video]Sony Mobile Developers World

It's been more than two months since Sony officially rolled out Android 5.0 Lollipop to the company's flagship, Xperia Z3 (unlocked models); and now, the update will finally reach the T-Mobile variants in the US.

The company (via official software update support page) has confirmed that Android 5.0 Lollipop firmware for Xperia Z3 and its two generation-old predecessor, Xperia Z1s, are now in the testing phase, leading many to believe that the company might release the update soon, probably by the end of this month or in June in the US.

"During this stage (testing), the device will go through T-Mobile certification process testing to make sure you get the best quality software possible," said T-Mobile (USA) on Xperia Z3 software update support page.

Now, T-Mobile subscribers will be happy to hear the news that their smartphones will indeed get updated to the new Lollipop OS. The only thing that device owners will now be hoping for is that the firmware be bug-free.

Sony has already released the update to more than a dozen Xperia Z series devices, including Xperia Z3 (unlocked), Z3 Compact, Xperia Z3 Tablet Compact, Z2, Z2 Tablet, Xperia Z1, Z1 Compact, Z Ultra, Z Ultra GPE (Google Play Edition),Xperia C3, and T2 Ultra. The company will soon initiate software roll-out process to remaining few devices Xperia Z, ZR, ZL and Tablet Z.

The new Android 5.0.2 Lollipop will bring in the new design language- "Material Design", with interactive user interface, lots of animation graphics, lock-screen notification options and the replacement of Dalvik with ART as its default runtime will bring improvement in performance-and-battery-life enhancement and many more features.

[Read more: Android 5.0 Lollipop: Top Key Features of New Google Mobile OS]

Few other noteworthy improvements include option to transfer apps from phone flash memory to SD card and multi-user profiles (work, private & guest).

Besides the new features of Lollipop, Xperia Z3 (T-Mobile) is also expected to support new LTE Band 12 (700 MHz) for smoother internet experience, reported Xperia Blog.