After a very slow start, Sony is now adding more and more devices to the Lollipop update list every other week or so. The company may have been late to the Lollipop game, but at least it's releasing new software at a decent pace. The latest handsets to be graced with the update to Android 5.0 Lollipop are the Xperia Z1, Z1 Compact, Z3 Dual, and Z Ultra. The screenshot you can see on the left depicts the update notification received by Xperia Z1 Compact owners in Italy. For that particular model the download size is 738MB, and you need to have at least 1.2GB of free space on your internal memory before attempting to update. The whole procedure should take around 20 minutes. After applying the update you'll be on build version 14.5.A.0.242. Obviously, these details could slightly differ for the rest of the aforementioned devices, but the rollouts for all of them have started today. Next week, Lollipop is headed to Sony's Xperia T2 Ultra and Xperia C3 (as well as their dual-SIM versions). After that, "in a few weeks time" the Xperia Z, Xperia ZL, Xperia ZR, and Xperia Tablet Z will be updated. Thanks for the tip,...
Source: http://www.gsmarena.com/lollipop_now_out_for_xperia_z1_z1_compact_z3_dual_z_ultra-news-11882.php