Android 4.4 KitKat will basically be rolled out for the high end smartphones and tablets out there though the firmware is also highly expected by those who are owning mid range devices too. Anyway, until the OTA release of Android 4.4 will embrace the Android devices it will take a while (a few months or even longer) as for now the software has been pushed out only for the Nexus handsets. Because of that, if you want to flash the KitKat OS ahead of official launch, you will have to go for a custom ROM firmware.

Well, this is what we will be checking during the present step by step guide; by using the next guidelines you will be able to learn how to easily update the Sony Xperia T to Android 4.4 KitKat OS by installing the new Omni ROM firmware. The Omni ROM firmware has been released for other handsets too, like Galaxy S3, HTC One, Xperia Z and so on which means that you can safely test the same on your Xperia T.

Actually, Omni ROM firmware is only a ported version of stock Android 4.4 KitKat, therefore, you are dealing with an unofficial update that has nothing to do with Sony or with Google. The firmware has been developed by those of xda-developers so we have to thanks them for the present tutorial. Since the Omni ROM is a custom software, on your Xperia T it will be installed a custom version of Android 4.4 KitKat OS. What does it means? Shortly, you will be enjoying the Android 4.4 platform that has custom looks, extra and stock features, apps and capabilities and so on.

The extra features have been designed to offer new possibilities for the Xperia T. That’s why, by using the Omi ROM firmware you will be able to upgrade the Xperia T battery life, or improve its speeds. Also, by using this version of Android 4.4 KitKat ROM you will be able to enjoy a redesigned web browsing experience, a new user interface and also you will be able to personalize and customize the performances of your Android based device.

Omni ROM for Sony Xperia T represents a stable Android 4.4 KitKat based custom update, so you can install the firmware for a daily use. According to those who have already tested this update, everything is working as expected, so Omni ROM is smoothly running on the Xperia T. If you have decided to apply this tutorial, then first of all, learn how to prepare your smartphone for the update procedure that will follow.

Because you will apply an unofficial version of Android 4.4, your phone must be rooted and installed with a custom recovery image. In order to detail these aspects, here is what you need to know: the root access must be gained before completing this tutorial because the Omni ROM firmware will have to access the internal system of your Xperia T – the access can be granted only via root; then the custom recovery image will be a user friendly interface that will link the internal system of the smartphone with its user. That’s why the Android 4.4 custom ROM can be installed only by using a custom recovery image – I recommend you to install the latest version of CWM or TWRP recovery since the devs are recommending the same thing.

It is important to know that when gaining root access and install a custom recovery image you are performing unofficial procedures. Because of that the warranty of your Xperia T will get voided. This is happening because the binary flash counter will be increased; but since the binary can be reset, you can also restore the warranty of your Sony Xperia T. Therefore, if you will need to regain the warranty choose the following: apply a un-root procedure; downgrade to stock Android firmware; install an official release of Android OS – only manually since OTA updates can’t be flashed on rooted handsets.

If you are used with these types of operations, then you know that when updating with a custom ROM a wipe is being required. If not, now you know that it is quite important to backup the Xperia T data before updating to Android 4.4 KitKat OS with Omni ROM firmware. Don’t worry as since your handset is rooted you can use free distributed backup and restore apps from Google Play for saving everything that’s on your phone’s internal storage memory – contacts, texts, call logs, market apps, personal info, data and accounts and more. Also, since a custom recovery is running on your Xperia T you can use the same for backing up the current ROM – if you don’t like the Omni ROM then you can go back to stock Android OS without following a complex guide like the present tutorial.

On the other hand, a computer or notebook is being required; also your Sony Xperia T and its USB cable must be somewhere near you as you will have to connect your phone with your computer – because of that, on your handset the USB debugging option must be enabled (do that by heading to path “menu -> settings -> developer options”. I recommend you to deactivate the security protection from your computer because the antivirus programs might interfere with our work. Also, if your phone’s battery status is showing less than 50% power left, you have to plug in the charger before going any further.

This step by step guide is compatible only with the Sony Xperia T, so don’t use this version of Android 4.4 KitKat Omi ROM if you want to update a similar or different handset as you can end up in bricking your Android based device. That was all for now; you can safely start the proper update procedure by applying the steps from below.

How to Update Sony Xperia T with Android 4.4 KitKat Omni ROM firmware

  1. Download the required files on your computer; place these files on desktop and don’t unzip anything.
  2. The required files are: the Android 4.4 Omni ROM firmware (you can download the same from here) and the Google Apps package – Google apps are not included on the update package (you can get Google Apps by going to this page).
  3. Now, connect your Xperia T with your computer.
  4. Use the USB cable in order to establish the connection; remember that USB debugging option must be checked.
  5. Copy-paste the downloaded files from desktop to your phone’s SD card.
  6. Disconnect the devices by removing the USB cord and turn off your Xperia T.
  7. Remember to backup the data before completing the next steps.
  8. Use this guide for learning how to boot in recovery mode.
  9. Wipe the data and clear the cache by selecting “wipe data factory reset”, “wipe dalvick cache” and “wipe cache partition”.
  10. Return to recovery and from the main menu of the same select “install zip from SD card” and “choose zip from SD card”.
  11. Pick the Android 4.4 firmware file and flash the same on your Xperia T.
  12. Repeat the last step and install the Google Apps package on your phone.
  13. Finally, in the end, from main menu of recovery select “reboot system now”.
  14. You are done, so enjoy.

Good work, the step by step guide has been successfully completed. Now, on your Sony Xperia T a custom version of Android 4.4 KitKat OS is running. The Omni ROM should work without bugs or issues, but in case you are experiencing problems with this update use the comments area from below and share your results with us and with other users who are thinking in applying our dedicated tutorial.

hilema · 3 years ago

You should have noticed somewhere it could not be used with a locked bootloader... I bricked my sister phone!

coco · 4 years ago

can't do it on xperia tx with this room

cdpreen · 4 years ago

I am trying to download the google apps, but get n error when requesting access on mediafire. Is there another source I can use please?

"An error has occured ('Failed to send message'), please try again later."

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