Sony will shortly push out firmware build 10.5.A.0.233 to the older Xperia Z series including the Xperia Z, Xperia ZL, Xperia ZR and Xperia Tablet Z. This new build follows on from the first Android 4.4.2 KitKat release (10.5.A.0.230) for these models and is likely to be a bug-fix release.
We already saw Sony’s workaround on the battery drain issues this morning, but hopefully the new update will go further to provide a more stable KitKat experience. We’ll let you know once the update starts to roll.
Xperia Z firmware build 10.5.A.0.233 certified for C6602, C6603 variants
Xperia ZL firmware build 10.5.A.0.233 certified for C6502, C6503, C6506 variants
Xperia ZR firmware build 10.5.A.0.233 certified for C5502, C5503 variants
Xperia Tablet Z firmware build 10.5.A.0.233 certified for SGP321, SGP341, SGP351 variants
Thanks Ben!