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. Right now the update is only available through Sony's PC Companion and Mac Bridge apps, though we imagine it will be available over-the-air soon enough.

Via: Xperia Blog