Android 4.4.2 Z-Ultraized KitKatcustom 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 canupdate Xperia Z to Android 4.4.2 Z-Ultraized KitKat custom firmware.

Android 4.4.2 Z-Ultraized features:

Based On The Official KK 4.4.2 Firmware 10.5.A.0.230Rooted With Latest SuperSUDeodexed, Zip-Aligned For Better RAM ManagementAdded init.d Support For Various System TweaksLatest XZDual Recovery Pre InstalledFixed Lag In Settings While ScrollingSuperuser Mod Added For Installing Z2, Z1 Like Ported Appsbuild.prop Edited For Z2 Ported AppsSmooth and Fast. No More Lags In SettingsUI Chnaged to Xperia Z UltraUpdated Sony Media AppsEnhached Settings with Xposed Installer and Xperia XposedSome(Not All) Bloat RemovedTrue Experience of An Ultra in 5″ Display!

Prerequisites toupdate 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>DevelopmentOptions>USB debugging.Your device must berooted, 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: downloadthe latest Android 4.4.2 Z-Ultraized custom firmware for Xperia Z fromhereand save the zip file on your computer.

Connect your smartphone to your computer using a USB cable and copy the firmware fileto your phone’s internal memory card.Disconnect the USB cord andpower off your Sony Xperia Z.Boot the Z into recovery mode: switch it on while holdingVolume Up,Home, andPowerkeys.Perform data wiping tasks: from recovery mode, selectwipe data / factory resetand confirm the process. Follow it withwipe cache partition, and thenwipe dalvik cache(fromadvanced).Now flash the custom ROMfor your Sony Xperia Z: selectinstall zip from sdcardfollowed bychoose zip from sdcard.Locate the Android 4.4.2 Z-Ultraizedzip 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 latestcustom firmware.

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