The Android 5.0, Lollipop upgrade has started for Sony's Xperia Z, Xperia ZL, Xperia ZR and Xperia Tablet Z, and Sony plans to also start upgrading the Xperia T2 Ultra and Xperia C3 to Android 5.1 in July. ony also plans to continue the Android Lollipop rollout to other products in the portfolio. The Xperia M2 and Xperia M2 Aqua will be directly upgraded to Android 5.1. Those upgrades will start a little after the update available for the Xperia Z Series, Sony said.