For those of you who want to try the latest Android 4.4.2 + Root for your AT&T Samsung Galaxy S3 with model number SGH-i747, you do not have to unroot and go through a lengthy process.
Our recommended method to install the Android 4.4.2 + Root via CWM or TWRP recovery. This is fully-stock, 100% same as stock firmware but with root.
For those of you with an older bootloader (You’ve rooted your phone on 4.2.2 or earlier), you will need to flash KToonsez kernel to make it boot.
If you already have Android 4.3 bootloader or later, you can just flash the ROM and should boot fine. Also, if coming from stock rooted ROM, you may be able to install without doing a factory reset. Just make a backup ROM and install ROM without factory reset if that’s the case.
NOTE: You need to update you CWM Recovery to v184.108.40.206 or higher OR also update your TWRP Recovery to v220.127.116.11 or higher. You can update your recovery by downloading CWM/TWRP then using Flashify app CLICK HERE.
To install, reboot into recovery, make backup ROM, wipe data/factory reset, install ROM, install Gapps, and reboot. (If for some reason you end up in a bootloop, reboot into recovery, go to Advanced Wipe for TWRP or Mounts & Storage for CWM, format/wipe /system, then re-install ROM.)
First time installing a custom ROM? See How to Install Custom ROM on Galaxy S3!
Want Flash Player? See How to Install Flash Player on Android 4.4.2/4.4.3 KitKat!
Want latest Android L Preview Keyboard? See How to Install Android L Preview Keyboard on rooted Android!
If you want some awesome audio, check out Viper4Audio FX MOD, which you can install on this ROM to enhance your music 100%.
If you want to run your apps in tablet/hybrid/custom DPI mode, see our Xposed App Settings guide.
Need to run apps that check for root? Check out How to Run Apps that’s don’t run on rooted Android!
If you want PIE Controls, see our LMT Pie Control guide.
Q: My 3G/4G LTE data is not working!!!
A: See How to Fix 3G/4G LTE data by Manually Setting APN on Android!
Q: I don’t have Play Store nor any of the Google apps!
A: You forgot to install Gapps, reboot into recovery and install it! (See above for download.)
Q: The ROM is not booting!
A: Try formatting/wipe /system and re-install ROM, sometimes the system partition gets corrupt and you may have to try 2 or 3 times before the ROM boots.