Samsung Galaxy S3 LTE AT&T SGH-I747 to Android 4.1.1

Samsung has already been rolling our the Jelly Bean update to its flagship phone since the last month. Most Galaxy S3 users have upgraded their phone to the new firmware and enjoying the new features, while there are still some who have not yet updated their phone. Do you own a Samsung Galaxy S3 LTE from AT&T (USA) and have not yet updated your phone to the official Jelly Bean firmware? If it is so, you can update your S3 manually by downloading the latest firmware and installing it yourself. Having installed the Android 4.1.1 Jelly Bean official firmware, you will be able to enjoy some new features and improvements  in the performance of your phone.

Having installed the 4.1.1 JB update, your phone will be graced with a Google Now, new TouchWiz enhancements, new Notifications Panel, , camera enhancements, improved sharing capabilities with Group Cast and S Beam, and plenty more. To know more about the features brought in by the update click here.

Firmware Details:

  • PDA: I747UCDLK3
  • CSC: I747ATTDLK3
  • Version: Android 4.1.1
  • Regions: USA

Download Firmware:  [Mirror Link]

Check All Available Jelly Bean Firmwares for Galaxy S3: Click Here

How to Install:

Install Android 4.1.1 Jelly Bean firmware to your Galaxy S3  SGH-I747


  1. Hii Rakesh.. I have a Samsung Galaxy S3 i747 from AT & T… But I have unlocked it and am using it in India now… So can you share the link for downloading the correct Jelly Bean firmware and its installation steps…
    I am new to the world of Android and this S3 is apparently my 1st one..

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