Sony has officially gone live with the Android 4.4.4 KitKat firmware update (14.4.A.0.108) for its Xperia Z1 and Xperia Z Ultra smartphones in several different regions across the world – just a day after pushing the same update to Z1 Compact. This update is being rolled out as an OTA package so it might take some time before it reaches your phone. Complete firmware details and a direct download link to the FTF file of 14.4.A.0.108 firmware with Customized SG (Singapore) branding for Xperia Z1 C6903 variant are given below. [Read more…]