Update AT&T Samsung Galaxy S4 SGH-I337 to Android 4.4 Kitkat Using Omni ROM

It is expected that Samsung will release the KitKat updates for its Smart Phone in Feb-March 2014. Until that, if you like to enjoy the Kitkat on your AT&T Galaxy S4 SGH-I337, you can use this guide to install Android 4.4.2 KitKat on your AT&T Galaxy S4 SGH-I337M using Omni ROM.

Bugs in ROM

  • NFC does not work

WARNING!

This process may void your device warranty. We are not responsible for any damage occur to your device.

Checklist Before Installing Custom ROM

  • First, check your Device Model number from Settings>>About Phone. And make sure it is SGH-I337
  • Your Phone must be rooted and you must install the latest CWM/TWRP recovery before you update. Older version of CWM/TWRP has issues with Android 4.4, so better use the latest versions. TWRP V2.6.3.0 and above, and CWM V6.0.4.3 are recommended.
  • Your Phone must be 80% charge at least.
  • You must backup all your important data.
  • USB Debugging must be On in your device ( To turn it on navigate to Settings>>Manage Application>>Development>>USB Debugging ).

Downloads to Install Custom ROM

Download these files and transfer them to SD Card of your phone.
ROM File: Download
Gapps File: DownloadFor Latest Update of ROM check Original Source
Gapps Original Source

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Guide to Update AT&T Samsung Galaxy S4 SGH-I337 to Android 4.4 KitKat Using Omni ROM

FOR CWM USERS

Step 1: Boot Into Recovery Mode

  • Power Off Your Device and wait till it completely turns off.
  • Press and Hold Volume Up+Home+ Power Button together to land your phone in Recovery mode.

Note: In recovery mode, you can use Volume keys to move up and down and power key to select.

Step 2: Creating Nandroid Backup

Note: It’s a optional process but very important. As anything goes wrong you can restore to the original state.
  • Go to Backup and Restore and select Backup.

Step 3: Cleaning up Device 

Note: This process will delete all your apps and settings.
  • Select Wipe Data/ Factory Reset then confirm it.
  • Select Wipe Cache Partition then confirm it.

Step 4: Flashing ROM

  • To flash ROM select Install ZIP then Chose ZIP from SD Card. Then browse your ROM file and select it.

Step 5: Flashing Gapps

  • To flash Gapps select Install ZIP then Chose ZIP from SD Card. Then browse your Gapps file and select it.

Step 6: Rebooting

  • Now from the recovery menu chose Reboot System Now.
Congratulation! You have successfully flash the Android 4.4 KitKat ROM on your AT&T Samsung Galaxy S4 SGH-I337
For TWRP Users

Step 1: Boot Into Recovery Mode

  • Power Off Your Device and wait till it completely turns off.
  • Press and Hold Volume Up+Home+ Power Button together to land your phone in Recovery mode.
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Note: In recovery mode, you can use Volume keys to move up and down and power key to select.

Step 2: Creating Nandroid Backup

Note: It’s a optional process but very important. As anything goes wrong you can restore to the original state.
  • Tap Backup and Select all Check Boxes and then Swipe to Confirm backup.

Step 3: Cleaning up Device 

Note: This process will delete all your apps and settings.
  • Tap on Wipe then Tap on Factory Reset then Swipe to confirm Factory Reset. Tap Back
  • Tap Cache then Swipe to Confirm. Tap Back.
  • Tap System then Swipe to Confirm. Tap Back.

Step 4: Installing ROM

  • Tap on Install. Browse your ROM Zip File. Tap on it. Then Swipe to Confirm Flashing.

Step 5: Flashing Gapps

  • Tap on Install. Browse your Gapps Zip File. Tap on it. Then Swipe to Confirm Flashing.

Step 6: Rebooting

  • Go Back then Tap on Reboot then tap on System to reboot your phone.
That’s it. You successfully flashed a custom ROM on your device.
Note: If your device gets stuck or freeze at logo while rebooting. Then do the Factory Reset.As such it is very easy to install Android 4.4 KitKat ROM on AT&T Samsung Galaxy S4 SGH-I337 using the above process. But still, if you have any problem. Ask it in Comments.

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