Update Sony Xperia Z to Android 4.4.2 KitKat Z-Ultraized custom ROM – How to

Android 4.4.2 Z-Ultraized KitKat custom firmware takes its charms from Xperia Z Ultra. If you have always wanted to experience Sony Xperia Z Ultra, get this ROM and see how the Ultra works. Complete port of Xperia Z Ultra, Z-Ultraized is a pre-rooted ROM giving you a promised stable and smooth experience. Here is how you can update Xperia Z to Android 4.4.2 Z-Ultraized KitKat custom firmware.update Xperia Z to Android 4.4.2

Android 4.4.2 Z-Ultraized features:

  • Based On The Official KK 4.4.2 Firmware 10.5.A.0.230
  • Rooted With Latest SuperSU
  • Deodexed, Zip-Aligned For Better RAM Management
  • Added init.d Support For Various System Tweaks
  • Latest XZDual Recovery Pre Installed
  • Fixed Lag In Settings While Scrolling
  • Superuser Mod Added For Installing Z2, Z1 Like Ported Apps
  • build.prop Edited For Z2 Ported Apps
  • Smooth and Fast. No More Lags In Settings
  • UI Chnaged to Xperia Z Ultra
  • Updated Sony Media Apps
  • Enhached Settings with Xposed Installer and Xperia Xposed
  • Some(Not All) Bloat Removed
  • True Experience of An Ultra in 5″ Display!

Prerequisites to update Xperia Z to Android 4.4.2 Z-Ultraized:

  • Backup any important data from your Sony Xperia Z as a complete wipe will be required during the flashing process.
  • Enable USB debugging option on your device: Settings > Development Options > USB debugging.
  • Your device must be rooted, unlocked and installed with a recovery tool like TWRP or CWM.
  • Your Xperia Z must be charged to at least 60% of power.

Note: the tutorial is only focused on Sony Xperia Z - please do not try it on other Android devices.

How to update Xperia Z to Android 4.4.2 Z-Ultraized KitKat:

Required files: download the latest Android 4.4.2 Z-Ultraized custom firmware for Xperia Z from here and save the zip file on your computer.

  • Connect your smartphone to your computer using a USB cable and copy the firmware file to your phone’s internal memory card.
  • Disconnect the USB cord and power off your Sony Xperia Z.
  • Boot the Z into recovery mode: switch it on while holding Volume UpHome, and Power keys.
  • Perform data wiping tasks: from recovery mode, select wipe data / factory reset and confirm the process. Follow it with wipe cache partition, and then wipe dalvik cache (from advanced).
  • Now flash the custom ROM for your Sony Xperia Z: select install zip from sdcard followed by choose zip from sdcard. Locate the Android 4.4.2 Z-Ultraized zip file and confirm the flashing process. The ROM installation process will take a few minutes so be patient.
  • Once done, return back to main recovery menu and reboot your device into the latest custom firmware.

Awesome! You have successfully completed the process to update Xperia Z to Android 4.4.2 Z-Ultraized custom firmware.

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