Update for Sony Xperia Z1, Z1 Compact, and Z Ultra fixes KitKat audio bug

There's an update available for Sony's Xperia Z1, Z1 Compact, and Z Ultra that promises to fix a speaker issue that cropped up when the handsets were updated to Android 4.4.2 KitKat. The new firmware build 14.3.A.0.757 corrects the bug that sent audio through the handset speaker (the one you use when using the phone as a phone) instead of the louder external speaker.

source: androidcentral