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Good news! Now you can update Samsung Galaxy S3 I9300 To Android 4.4.4 Kitkat. The CyanogenMod11 brings the Kitkat firmware for the Galaxy S3. The firmware comes with many bug fixes and stable Kitkat features. Even though the update is not an official one released by Samsung, it is worth upgrading as it is known that CyanogenMod ROMs based on AOSP comes with some features added to the official Kitkat firmware.

We should be thankful to the CyanogenMod developers for formulating this stable ROM for Galaxy S3. So, are you interested in updating your device? If you are ready with your device, Go through the list of prerequisites to safeguard your personal data and phone’s operating system.


Check Phone Model

Check your phone’s model which should be Samsung Galaxy S3 I9300. You can check it by heading over to Settings>>About Device. Do not attempt this tutorial on any other variant.

Samsung USB Drivers

The phone is to be connected with a PC to transfer the firmware package. For the PC to detect your phone, you should install Samsung USB drivers. If you have already installed them, ignore this message. Else, go through the below link to download Samsung USB Drivers.

Get Samsung USB Drivers

Backup Important Data

It is great thing that you are done with installation of USB drivers. We know, it is mandatory to make a backup of important data on phone before we root/install ROMs. It may be an official or unofficial update, if anything goes wrong during installation, it wipes the entire data. So, backup is recommended while updating an Android phone. If you are not sure about what to backup and how to backup? take a look below:

  • Backup Apps, Wanna know how? Check this >> How To Backup Android Apps ?
  • Backup SMS Messages, Wanna know how? Make use of SMS Backup & Restore App
  • Backup Contacts, Mail data, Google Data, Wanna know how?, Just sync them with Google Sync.
  • Backup Call Logs, Wanna know how? Make use of Call Logs Backup & Restore Android App   
  • Backup phone settings like Access Points, GPRS Settings, Connectivity Settings. Wanna know how? Note them on a paper or something.

Few More Prerequisites

  • You have already installed USB drivers on your computer. Even though if your phone fails to detect the PC, make sure that whether you have enabled USB debugging on your Android phone. The path to enable it varies for different versions of Android operating systems like Jelly Bean, Ice Cream Sandwich, Gingerbread.
  • Double check your device model before you get started with the installation. If you install non compatible ROM on your phone, it may brick the operating system. So, make sure that your phone model matches with the model we mention in the article. If your phone’s bootloader is locked, you cannot Root/install Custom ROM’s. So, unlock the bootloader before performing tutorial.
  • Make sure the phone’s battery is at least 75% full to ensure that it should not run out of battery while installing the ROM.
  • Download all the required files listed in the downloads section and keep them in a folder to be handy for you.

If you have completed all the above steps, you can now continue with installation process which is a bit typical. Make sure that complete every step in an orderly manner.

Downloads Required

CM11 Android 4.4.4 Kitkat Package

Google Apps

How To Update Samsung Galaxy S3 I9300 to Android 4.4.4 Kitkat CM11 Firmware ?

Things To Remember:

Disclaimer: The Custom ROM’s, Firmware, Software, Applications, Mods and any other tools shared/mentioned in this article belongs to their respective developers. Neither our team nor the developers are responsible to any losses that occur to your device while installation. So, you are suggested to continue with the tutorial at your own risk. Think before you act. 

Warning: Make sure that you double check the model name/number we mention in the article. Attempting to install the firmware on any other model may brick the OS.

Rooting Warning: Rooting voids the manufacturer’s warranty for the device. It may possibly brick the operating software of the device. So, make sure that you continue to the tutorial with your own decision.

Update Samsung Galaxy S3 I9300 to Android 4.4.4 Kitkat

Step-By-Step Tutorial

To install Custom ROM’s on Samsung Galaxy S3 I9300, it is to be rooted and Custom Recovery installed. Go through the simple rooting tutorial provided below:

How To Root Samsung Galaxy S3 I9300 ?

Step 1: Download the Android 4.4.4 Kitkat package and Google Apps from the downloads section to your PC.

Step 2: Connect the Galaxy S3 I9300 to the PC using USB cable and transfer the CyanogenMod ROM package and Google apps into the SD card of the phone. Make sure that you copy it to the root folder of SD card. 

Step 3: Now enter the recovery mode on the Galaxy S3 by following the below steps:

  • Turn off the device and wait until the display goes off.
  • Press and hold together Volume Up+Home+Power buttons.

Step 4: Once the phone enters the Recovery mode, you can find a list of installation and data wipe options. Among them choose wipe data/factory reset. You should use power button to choose and volume buttons to navigate in recovery mode.

Step 5: Perform a complete cache wipe on your Samsung Galaxy S3 by choosing wipe cache partition.

Step 6: Its time to enter the advanced options of ClockWorkMod recovery. Select the advanced options and choose wipe dalvik cache.

Step 7: Once you complete all the above steps successfully, you can continue with the installation. Choose +++++Go Back+++++  and select install zip from SD card.

Step 8: Now select choose zip from SD card and using volume buttons for navigation and power button to select, choose the previously copied Android 4.4.4 Kitkat installation package from SD card. 

Step 9: Confirm the installation on the next screen and it starts flashing the firmware on Galaxy S3 I9300.

Step 10: The process of installation takes some time. Follow the above three steps to install Google apps package on the device. After installation completes, select +++++Go Back+++++ and reboot the device by selecting “reboot system now” from the recovery menu. The device takes sometime for the first time reboot.

That’s all! You’ve successfully installed Android 4.4.4 Kitkat CM11 firmware on Samsung Galaxy S3 I9300 . To check whether the Android firmware is updated, go to Settings>>About Phone, there you can find the firmware version as Kitkat 4.4.4.

If you face any problems during installation of Android 4.4.4 Kitkat on Samsung Galaxy S3 I9300, feel free to drop your words in the comments section. We will be glad to help you.

Source: XDA