Own a Galaxy S3 and want to upgrade it to Android 4.4.2 KitKat? Here is how you can do that with a custom firmware Revolutionary S5 ROM. The latest version of the ROM brings the real Galaxy S5 UI, menu system, notification drawer, status bar, boot animation, sound, icons, and more of S5 features to Galaxy S3 (I9300).
This S5 themed ROM features S5 launcher, icons, wallpapers, ringtones, accuweather widget, clock, MyFiles, video player, status bar, notification bar and other various optimizations. Read more about Revolutionary S5 Android 4.4.2 KitKat features from this XDA thred.
1. Galaxy S3 must be rooted and custom recovery installed.
2. USB Debugging is enabled.
3. USB drivers for Samsung Galaxy S3 installed in your computer.
4. Create a backup of all important data in your Galaxy device.
Important: As always, make a Nandroid back up of your device from recovery.
Disclaimer: Please follow this guide at your own risk. Though we are putting our level best to provide this tutorial at its maximum perfection and accuracy, we can’t take responsibility for anything that goes wrong. This guide is intended for technically talented users only.
2. Transfer both files to your Galaxy S3’s SD card.
3. Now, boot your S3 into recovery mode. To do so, turn off it, press and hold Volume Up, Down and the Power buttons simultaneously.
4. From recovery, select – wipe data/factory reset > Yes. Then, tap on Advance, select wipe Dalvik Cache to wipe Dalvik cache data too.
5. Now, select install zip from sdcard followed by choose zip from sdcard. Locate the Android 4.4.2 KitKat based Revolutionary S5 custom ROM file copied earlier and select it. Tap on yes to confirm installation and wait for the ROM installation to be completed.
6. Once the installation process is finished successfully, repeat the above step (5) for GApps file installation.
7. Return to main recovery menu and select reboot system now. Your device will boot into Revolutionary S5 custom firmware. It’ll take little more time to boot up for the first time. Enjoy.
After trying the custom ROM for some time, and decide to returned to stock Samsung firmware, from recovery, select backup and restore option, then restore stock firmware by selecting it from the list. Alternatively, download original ROM for your device from Sammobile.com, then enter into download mode and try to reinstall Samsung original firmware using Odin.