Sony is rolling out The First Firmware Update of Xperia Z & Xperia ZL. This Update is taking place via OTA. So, make sure you are constantly checking the Software Update Section on your Xperia Device. Currently their is no Change Log available for this Update. But, it is expected that the New Firmware of Xperia Z has the Major Bug Fixes.
- Android OS - 4.1.2 Jelly Bean (Same)
- Build Version - 10.1.A.1.434
- Kernel - 3.4.0
Coming to Xperia ZL, there is no Info about this Firmware Update. Also, the Firmware Update is Not yet Certified on the PTCRB Website Yet. There are no Noticeable Changes too. This Update also has a New Build Version.
- Android OS - 4.1.2 Jelly Bean (Same)
- Build Version - 10.1.A.1.434
- Kernel - 3.4.0