How to install android KitKat 4.4 on Sony Xperia z ultra GPE


Sony has released Android 4.4 KitKat officially on the Sony Xperia Z Ultra Google Play edition but the consumers were really pissed off due to lots of bugs and issues with the OS which had locked many features else also some features were not available for usage. Sony later came up with the 4.4.2 update which brought the solution to all the issues present before and this has been made available through an OTA update. The developers at xda forums need to be credited for their hard work of getting the zip file which is a complete healthy 534 MB zip file for the latest Android 4.4.2 KitKat.

Sony Xperia Z Ultra

Though Sony themselves have provided us with the version of 4.4.2 KitKat on their developers forum, but still it has been very properly compiled for us and available as a single download right here. (

So after you download the install zip file, then the actual process of booting up your device and installing the 4.4.2 KitKat version even on your non-Google Play edition phone is pretty simple. All you need to do is side load the OS after rooting your device which can be done by unlocking the bootloader. For that you can check out Sony’s website where you can check whether phone is capable of boot-loading i.e. if it has an unlocked bootloader.

Now for the steps of the actual process are given below, but before that some words of caution. Make sure that you get a complete backup of your system including your ROM, contacts, your apps, entertainment stuff, etc. times like this it is always better if you have everything on the cloud. So after you have got everything done and backed up, finally we can get to the actual installation of the file.

Android kitkat Logo

Note: Do note that all the steps mentioned below are verified and the Android version is optimized for Sony Xperia Z Ultra, but still if by reason your phone gets bricked or some other complication occurs, which we are sure won’t happen; we are absolutely not responsible for any of it. It is all at your own risk. Also secondly you doing this update on your device will end up voiding the warranty of your device. So also do take due note of that.


  1. Acquire the file that your want from right here. (
  2. Connect your phone to your computer and move the zip file to your phone.
  3. Boot your Phone in Download mode by pressing the power and the volume button.
  4. After opening in download mode, a command prompt will open on your system. In there type the simple command, “adb sideload ” while your device is in recovery.
  5. Now the OS will be installed and loaded on your phone. In short it will be flashed on your phone.
  6. After the entire thing, your phone will boot for the first time. The phone will take a bit extra time to boot up which might range even upto 30 minutes sometimes which happens while booting the device for the first time. But once it is done, then it’s over.

So this is how finally the Android 4.4.2 KitKat can be loaded in any Sony Xperia Z Ultra if you don’t have the patience for until Sony comes up with OTA update for your non-Google Play edition device. The only difference is that with this you will get the stock Android version in the Google Play edition phone so it will be some time until you can get the OTA with the custom Sony UI over Android 4.4 KitKat. But till then or rather even with that present, this is not at all a bad choice now, is it?