Sony Mobile 在 Blog 公佈，為 Xperia Z1 和 Z Ultra 推出 Firmware 更新，可以改善效能和穩定性。
Xperia Z1 就改進了相機拍摄程式，拍攝整體效能提升，程式運行更流暢。
– tweaked the camera algorithm for even better all round performance
– refined Sony’s Smart Social Camera platform, so Xperia Camera apps run more smoothly (particularly Burst Mode, Superior Auto, AR Effect and Sweep Panorama…)
Xperia Z Ultra 就優化了屏幕觸控敏感度。
– optimized touchscreen sensitivity, for both finger gestures and writing / sketching with pencils, metal pens and selected styluses
兩部裝置也調整了屏幕顯示，改善電池用電量，並優化 Exchange 連線可以有更快電郵同步, 顯示和下載。
-re-calibrated the display ever so slightly, to ensure viewing experiences remain bright & bold
– economised power consumption for longer battery life
– streamlined Exchange connection for faster email sync, display and download
當然更新推出的確實時間，視乎不同地區市場而有所不同。
資料來源：Sony Mobile Blog