Sony Xperia Z1 and Z Ultra get new firmware update

The update brings changes to display settings,Wi-fi, Bluetooth streaming and the stock email app.

Sony has announced rolling out a new firmware update to its Xperia Z1 and Z Ultra smartphones.

Sony made the announcement via its official Twitter account saying: “now rolling (phased): JB 4.3 firmware for #XperiaZ1 & #XperiaZUltra – brings display, BT music streaming, email, Wifi improvements and more!”