android 4.2.1 jelly bean

I747UCDLK3 AT&T Samsung Galaxy S3 SGH-I747 Android 4.1.1 Jelly Bean Official Update Rolling

All heads up to all AT&T Samsung Galaxy SIII SGH-I747 users in the United States, the official Android 4.1.1 Jelly bean update now starts rolling. The new firmware build is I747UCDLK3, this is an update from earlier builds I747UCALG1 or I747UCALH9. The Canadian version was released yesterday,  U.S  advance users also expected that AT&T will follow. It’s now available via Samsung  Kies only and not made available thru OTA (over the air) according from Samsung United States support team.

Update Build: I747UCDLK3 Android 4.1.1 Jelly Bean

Device: Samsung Galaxy S III SGH-I747
Country: United States of America
Provider: AT&T
Product Code: SGH-I747RWBATT
Latest firmware: I747UCDLK3/I747ATTDLK3/I747UCDLK3/I747UCDLK3
Baseband/MODEM: I747UCDLK3
Build: 11-16-2012
Released: 12-03-2012

New Features:

  • Android 4.1.1 Jelly Bean
  • New Keyboard layout
  • Google Now (hold the home button down or go to the search bar)


  • Wi-Fi calling improvements
  • Camera enhancements
  • Keyboard improvements
  • Smooth and Faster than ever before
  • Home screen mode
  • Blocking mode
  • Swype is added
  • Music Hub
  • Setting menu
  • Quick panel UI
  • Facebook support

APN Update:

User created Access Point Names (APNs) will be erased during the update. Please touch Menu > Settings > Wireless and networks > Mobile networks > Access point namesto reconfigure your custom APNs after the update is complete.

Update thru Kies

  • Download and install latest Samsung Kies
  • Run Kies and connect your device
  • Check for update
  • Follow Kies instruction to update

Read the full detailed guide from Samsung U.S support here.

I747UCDLK3 original Stock ROM

For advance users and developers used, for they can’t get this updates if their devices now runs with rooted or unofficial firmware. You can follow the full detailed guide here on how to restore back your Galaxy S3 to factory stock firmware.

Quick Guide: Stock ROM flashing
Grab: Odin3_v3.07 link and USB Driver
- Back-up all important files
- Fully Charge the battery

  • Install the USB driver
  • Unzipped and Run Odin. Make sure the “Repartition” option is not checked.
  • Click on the PDA button then select and load the .tar.md5 file.
    PDA: I747UCDLK3_I747ATTDLK3_I747UCDLK3_HOME.tar.md5
  • Boot the device onto Download Mode (Turn it OFF, then Press and hold Volume Down+Home+Power button) at the same time. Press Volume Up button to continue onto Download mode screen.
  • Connect the device to computer using the supplied USB cable.
  • Hit Odin’s “Start” button.
  • Wait until it finishes flashing as it confirms with a word “PASS”.
Wilma Dee

Wilma Dee

a.k.a Droidangel had been written tips and tutorials about mobile phones on various forums and websites since 2008. She owns and runs a mobile phone stores, which is a naturally fluent in all kinds mobile phones and a highly skilled tech-savvy by profession but she also enjoyed much into listening music and watching Hollywood movies.

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13 thoughts on “I747UCDLK3 AT&T Samsung Galaxy S3 SGH-I747 Android 4.1.1 Jelly Bean Official Update Rolling”

  1. My phone shows me:

    AP: I747UCALG1
    CP: I747UCLG1

    Is this update going to brick my phone or something? Can’t find that answer anywhere.
    It’s indeed a SGH-I747 AT&T, but I’m worried about that SCS code as I’m going to use Odin to flash.

    1. If you are in the United States then you can manually upgrade thru Kies.
      If you are outside U.S regions, then you have no choice but manually upgrade via Odin.
      Odin will not brick your phone since it’s the software used to fix bricked Samsung devices.

  2. i have unlocked my phone unofficially and rooted it to have CM10.1 on it … now if i revert back to stock will thr be a chance of getting my phone locked

    1. I rebooted in update mode (Volume up + Home + Power) and did Wipe Factory Reset. Than I reboot again and it worked fine.

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