Just as promised. Here’s the official FTF file of the Android 4.4.4 KitKat firmware (14.4.A.0.108) for your Xperia Z Ultra C6833 (International LTE variant) phone. This FTF has been extracted from Sony PC Companion using Flashtool. It comes under Customized MY (Malaysia Generic) branding. Rest of the firmware details, official changelog  and direct download links are given below.
Firmware Details
- Model:Â C6833 (International LTE)
- Region:Â Malaysia
- Android Version:Â Android 4.4.4 KitKat
- Model Name:Â Xperia Z Ultra
- Firmware Version:Â 14.4.A.0.108
- Branding: Customized MY
- Build: R3C
- Customization Number: 1275-9426
Download Link: Click here (1GB) to download 14.4.A.0.108 Android 4.4.4 KitKat firmware FTF for Sony Xperia Z Ultra.
Related:Â Download 14.4.A.0.108 Android 4.4.4 Firmware FTF for Xperia Z1 (C6903)
The official changelog for this firmware update includes several bug-fixes, performance enhancements, Google security updates, and revamped Camera, Contacts, Music, Google+, Voice & other inbuilt Sony apps. After updating you can check your current firmware version in Settings > About phone > Build number / version.
Via XDA-Developers (by senior XDA member iBuzman)
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