There are a few ways to get Android 4.4 on Galaxy S3, but the most common is to use a custom ROM. There are many different custom ROMs available for Galaxy S3, so it’s important to find one that’s right for your device and your needs. To find a custom ROM for Galaxy S3, you can use the Google Play Store or the Samsung App Store. The Google Play Store is more popular because it has a wider selection of custom ROMs and devices. The Samsung App Store is less popular but has more specific options for Galaxy S3 devices. To install a custom ROM on your Galaxy S3, you first need to create an account on the Google Play Store or Samsung App Store and then select the “Install from zip file” option. Once you have selected the zip file, you will need to extract it into your device’s storage. Once you have extracted the ROM into your device’s storage, you will need to reboot your device in order to install it. After reboot, you will need to open up the Samsung App Store and select “My apps & games” in order to see the list of installed apps. You will then need to select “Android 4.4 LMY47I Custom Rom (x86_64)” from the list and click on “Install”. After installation is complete, reboot your device again in order to take effect of the new ROM!