Upgrade or Install Sony XPERIA T2 Ultra D5303 to Android Lollipop 5.1.1. The firmware 19.4.A.0.182 available for downloading https://drive.google.com/file/d/0B1AAC4lt7nzOVFlsbkpSSktBNE0/view?usp=sharing. You can download your Sony XPERIA T2 Ultra D5303 firmware 19.4.A.0.182 at the page. How to Upgrade Sony XPERIA T2 Ultra D5303 to Lollipop using Sony Xperia Flashtools: