Install AOKP Android 4.4.2 on Galaxy S3 (Verizon, AT&T, T-Mobile, US Cellular and International models)

The AOKP team had finally released the official Android 4.4.2 platform and now more and more Android based devices can be installed with the same firmware. If you own the Samsung Galaxy S3 (International or US variants of the smartphone) phone and want to update to latest Android 4.4.2 KitKat OS ahead of official OTA roll out, then you can safely use this dedicated step by step guide which will take you through the flashing procedure of AOKP custom ROM software; just follow the guidelines from below for learning more about this new update and also about the installation operation of the same.

First of all, it should be clear for you that we are dealing with the official AOKP Android 4.4.2 KitKat custom ROM and not with a ported version of the firmware. So, this update will smoothly run on your Galaxy S3. Furthermore, this guide is compatible with the following models of the Samsung Galaxy S3: International, Verizon, T-Mobile, AT&T and US Cellular. Therefore, the steps from below can be used by all the SGS3 users that want to install the latest Android 4.4.2 system on their smartphones.

As you know, Samsung will release the KitKat OTA update for the Galaxy S3 during the following months as each carrier will provide the firmware gradually, in phases and on different times. Because of that, the best will be to try the AOKP OS instead or at least until the stock update is being rolled out. Of course, AOKP isn’t an official update – the same is being developed by third party devs (it has nothing to do with Samsung or with Google – the ROM is only a free aftermarket distribution of Android 4.4.2 KitKat platform) but the software is stable, comes without bugs or issues and brings important features and capabilities that cannot be found on the default version of Android OS.

These features offers great possibilities as by using the same you can power up the performances of your Galaxy S3. Basically, with AOKP Android 4.4.2 installed you will be able to obtain more power, improved speeds, upgraded battery life, updated web browsing experience and a new and more stable user experience (you will not be enjoying the pure KitKat UI though). Also, you will have access to the internal system of your phone, you will be able to remove the bloatware and to install custom apps and programs.

So, as you can see, you have all the reasons for updating your Verizon / T-Mobile / AT&T / US Cellular / International Samsung Galaxy S3 with Android 4.4.2 KK based AOKP custom ROM firmware. But before heading to the proper flashing procedure, you first have to learn how to prepare your device. So complete the pre requisites which are being detailed below.

  • Root your S3 because a custom ROM can be updated only on a rooted system. Why? Well basically the firmware will have to access some in built apps and programs and since you are using an unofficial port of Android OS, you need to root the system in order to provide the mentioned access.
  • After gaining root access you need to install the latest version of CWM or TWRP recovery on your device. Use one of the mentioned custom recovery images because the AOKP system has been tested by the devs only via CWM or TWRP recovery.
  • Then backup the SGS3 data because on the update procedure a wipe will be required – as you know, when wiping the system, the data which is saved on the internal storage memory will be erased.
  • Use the custom recovery image you have installed earlier for making a Nandroid backup; in this way you will save the current ROM – if the AOKP firmware will not be on your taste then you will be able to easily restore the old ROM.
  • Also, use suitable backup and restore apps from Google Play for saving the EFS folder, contacts list, call logs, text messages and personal data, info and accounts.
  • A computer, your Verizon / T-Mobile / AT&T / US Cellular / International Samsung Galaxy S3 and its USB cable are being required.
  • On the computer and also on your smartphone first you will have to temporarily deactivate the security protection – just disable the antivirus and antimalware programs.
  • Then, on your phone check the battery status: if there is less than 50% power left, first of all plug in the charger and only after that go and apply the steps from below.
  • This step by step guide is teaching you how to install AOKP Android 4.4.2 custom ROM firmware; the steps from below are compatible though only with the Verizon / T-Mobile / AT&T / US Cellular / International Samsung Galaxy S3.

Since this isn’t an official update operation and since you have to apply some custom procedures on your phone (like gaining root access), by completing this guide you will void the Galaxy S3 warranty. This is happening because the binary flash counter of your device will be increased. Anyway, the warranty can be restored by revoking the root access; achieve the same by downgrading your phone to stock Android Jelly Bean OS, or apply the OTA Android 4.4.2 KitKat firmware.

How to Install AOKP Android 4.4.2 on Galaxy S3 (Verizon, AT&T, T-Mobile US Cellular and International models)

  1. The first thing to do is to download the AOKP firmware file and the Google apps package.
  2. You can get the Google apps from here, while for the Android 4.4.2 update file use one of the following links: for the Verizon Galaxy S3 model go here; for AT&T use this page; if you own the US Cellular SGS3 get the file from here; for International version use this link and for T-Mobile go here.
  3. Save these files on your computer – you can place the files on desktop (don’t unzip the same).
  4. Then connect your phone with the computer by plugging in the USB cable.
  5. Up next transfer the downloaded files from desktop on your phone’s SD card.
  6. Good, now unplug the USB cable as the computer is no longer useful.
  7. Also, turn off your device.
  8. Enter the Galaxy S3 in recovery mode.
  9. From there first select “wipe data factory reset” and “wipe cache partition”.
  10. Choose “advance” and pick “wipe dalvick cache”.
  11. Up next select “install zip from SD card” followed by “choose zip from SD card”.
  12. Pick the AOKP firmware file and flash the same.
  13. Repeat the procedure and install Google apps package on your phone.
  14. In the end, from main menu of recovery select “reboot system now” and you are done.

Congratulations; you have installed AOKP custom ROM firmware on your Verizon / T-Mobile / AT&T / US Cellular / International Samsung Galaxy S3. A custom version of Android 4.4.2 KitKat OS is running on your smartphone, so try and test the new software in order to see how it performs. Don’t forget about us and use the comments field from below for sharing your impressions, results and thoughts with us and with other users too.

Samsung Galaxy S3 Articles

  • Adeeb

    its saying signature verification failed

    • Jason Grady

      To install any 4.4 KitKat ROM on your GS3 you will need to be running ClockWorkMod 6.0.4.3. Update your CWM or TWRP recovery binaries and then reattempt installation again. CWM is available via their website or ROMManager app and TWRP is available via the GooManager app.

    • Jason Grady

      Also signature verification failure can be a bad download causing an MD5 mismatch. Redownload and attempt to reinstall.

  • Atul Khera

    Does it hv FM tuner which vomes in samsung international model.

  • kimo emad

    there no i9305 the international lte version ??????????!!!!!

  • Rebel

    Two issues, please help ASAP as I’ve already wiped my mobile…

    1) there is no ADVANCE option in that dos like screen once in recovery mode!!!!
    2) when I select APPLY UPDATE FROM EXTERNAL STORAGE” it gives error saying

    Failed to verify whole-file signature
    Signature verification failed

    Please help… thanks

    • Rebel

      And I’ve checked the MD5 code of my downloaded AOKP zip file, its exactly as per the original MD5!!!!

      • taly

        It is because yoy are trying to download it without rom manager. You have to download it in the play store and from the app install the zip hope it helped.

        • Hrishav

          I have downloaded the rom manager as well. I would appreciate If you could please provide the link for the appropriate ROM manager.

    • Rebel

      Guys please I asked for quick help… I’ll appreciate…

  • Ahmed Baker

    I installed it yesterday so far everything seems ok
    I just faced one problem, when i try to text on whats app or skype the keyboard hides the text field, i cant see what i am writing …any suggestion on how to fix this problem.

  • tali

    Well, first thing many features of the phone like multi window get lost, it has two launchers and you cant add more pages of widgets/apps. My biggest problem was that 3G WAS NOT WORKING. it only worked on wi-fi but when I disconnected the phone it was impossible to get internet to work
    Does anyone know a solution to this?

  • Deionas

    works great for me. thanks

  • Hrishav

    Does not show the advance option in my recovery boot mode. And while trying to install without clearing the dalvick cache it gives me signature verification error. Anyone please post the appropriate solution for it. (International Version GT-I9300)

  • Hrishav

    Guys I installed the kitkat but all the Samsung features have been disabled. Is there any option from which I can enable the motion sensor and the S-Voice features that the samsung had originally provided. I appreciate the quick response

  • Carl

    am in but why am i getting a 3g connection on a 4g phone though

  • tonyh66

    The Gapp file that the article links to is not available anymore. Which Gapp file should I use for a ATT Galaxy S-3 then?

  • Dougy

    same question as tonyh66. The link isn’t working for google apps. Where else can I find those

    • Dougy

      and same att galaxy s3