The Android 5.1.1 Lollipop firmware update for the Sony Xperia Z3 Dual (D6633) initially started to seed over a week back, but only to a couple of regions. However, the update, which moves the Xperia Z3 Dual to build number 23.4.A.0.546, has now seen availability widen. The generic firmware is currently live in a number of regions including Brazil, Hong Kong, Middle East, Portugal, Russia, Saudi Arabia and the USA. Some users are reporting issues with USSD codes not working, if you’ve downloaded the update let us know your experiences below.
Sony Xperia Z3 Dual FTF firmware file – Android 5.1.1 Lollipop (23.4.A.0.546)
Thanks Abdullah919191, Abdulaziz, Jozef and Omessy7!