Upgrade or Install Sony XPERIA Z5 Dual E6683 to Android Lollipop 5.1.1. The firmware 32.0.A.6.66 available for downloading https://drive.google.com/file/d/0B1AAC4lt7nzOTWNXc1pWUGJfcXc/view?usp=sharing. You can download your Sony XPERIA Z5 Dual E6683 firmware 32.0.A.6.66 at the page. How to Upgrade Sony XPERIA Z5 Dual E6683 firmware 32.0.A.6.66 using Sony Xperia Flashtools: