Sony rolled android 4.3 update on Xperia Z1 and Xperia Z Ultra in form of 14.2.A.0.290 firmware and soon after one week we saw another 14.2.A.1.114 firmware getting certified on PTCRB for all the bugs which android 4.3 firmware introduced in Xperia Z1 and Xperia Z Ultra. Well it has been mid Jan and now firmware update has been rolled for Xperia Z1 and Xperia Z Ultra yet. At present Xperia Z1 Compact is running 14.2.A.1.114 firmware.
Just now spotted that new 14.2.A.1.124 firmware has been certified for Xperia Z1 and Xperia Z Ultra all variants on PTCRB website and hope it will be rolled out sooner. It is expected that this new 14.2.A.1.124 firmware update will bring white balance app in display settings and new Sony camera apps.[ UPDATE - 28 Jan ]
Check below the 14.2.A.1.124 firmware certification for Xperia Z1 C6902, C6903, C6943, C6906.
At Xperia Z1 users are suffering from poor battery backup, stamina mode not working properly as stand by time as been reduced, camera pics have a lot of noise and low speaker sound.
[ Update ] We just checked and found that a higher build 14.2.A.1.136 firmware is currently in testing and it may be the firmware getting released instead of 14.2.A.1.124.
We hope Sony soon rolls out this new android 4.3 14.2.A.1.124 firmware update for both Xperia Z1 and Xperia Z Ultra. Do let us know what bugs you are facing on present android 4.3 firmware on Xperia Z1 and Xperia Z Ultra, drop your comments below.