Parece ser que ya hay rulando por ahí una nueva versión de firmware
Xperia Z1 firmware update (14.1.G.2.257).
For Xperia Z1, we’ve…
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…)
For Xperia Z Ultra, we’ve…
optimized touchscreen sensitivity, for both finger gestures and writing / sketching with pencils, metal pens and selected styluses
And then across both products, we’ve…
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