Upgrade Samsung Infuse 4G to Android 2.3.6 Firmware UCLB3

March 15, 2012
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The newly leaked firmware UCLB3 of Android 2.3.6 Gingerbread is now available for owners of the Samsung Infuse 4G to grab.  While there are still no ICS OTA updates rolling out for the Samsung Infuse 4G, this firmware will do the trick for the mean time.

It’s not Android 4.0 Ice Cream Sandwich, sadly, but since the latter is still not yet out for the Infuse 4G, this latest version of Gingerbread¬† is something that you could try for now while waiting for ICS.

Leaked firmware UCLB3 is an official build from Samsung.  So, you can practically use this to bring your phone back to stock firmware.  This can come in handy if you encounter problems like getting stuck in a boot loop while flashing new ROMs.

There are two ways to install this firmware: through Odin3 or Heimdall Suite.

Requirements will vary, depending on which of the two methods you wish to use.

As always, use this guide at your own risk.  We shall not be liable for any catastrophe occurring on your phone or to you because of your use of this guide.

Installing Through Odin3

Requirements

  • An AT&T Samsung Infuse 4G SGH-I997
  • A computer running Windows
  • Back up of all the important¬† data in your phone (e.g., contacts, call logs, files, bookmarks and Internet settings)
  • Samsung USB drivers for your phone: 32-bit Windows or 64-bit Windows
  • Uninstall Samsung KIES.
  • Temporarily disable antivirus and firewall programs.

Installation

  1. Download the UCLB3 ROM from here.  Save the file to your computer.
  2. Extract the ROM ZIP archive file. You will get two files but only the I997UCLB3-Homebinary.tar.md5 will be used.
  3. Download Odin3 v1.7 from here and save it to your computer.
  4. Run the Odin3 executable that you just downloaded.
  5. Turn off your phone completely.
  6. Put your phone in download mode, as follows: hold both the style=”font-style: italic;”>Volume Up and Volume Down buttons together as you plug the phone into the PC via USB cable.
  7. Open Odin3 and you will see a message saying “added” in the message box in the lower left corner.
  8. While in Odin3 click on the PDA tab and select I997UCLB3-Homebinary.tar.md5.
  9. In the Option section in Odin3, check Auto Reboot and style=”font-style: italic;”>F. Reset Time and leave the rest unchecked.
  10. Press the Start button in Odin3 to begin flashing the firmware to your phone.¬† If successful, you will see a “PASS” message with a green background in Odin3.
  11. Your phone will automatically reboot upon successful flashing of the firmware.  Disconnect your phone from the PC after the phone has completely rebooted.

Installing Through Heimdall Suite

Requirements

  • A rooted AT&T Samsung Infuse 4G SGH-I997
  • A computer running any OS of your choice
  • Install the latest Java on your computer.¬† See here for instructions.
  • Latest version of Heimdall Suite — Download and install the appropriate binaries for your computer’s OS from here.
  • Back up of all the important¬† data in your phone (e.g., contacts, call logs, files, bookmarks and Internet settings)
  • Adequate battery power on your phone (at least 50%, preferably 100%)
  • Disable any security, antivirus, or firewall programs that can potentially disrupt the process.¬† Do not run any other programs while flashing the firmware.

Installation

  1. Install Heimdall Suite on your computer.  Make sure you set it up properly on your computer, including setting up the drivers.  Check the accompanying documentation in Heimdall for more info.
  2. Download the Heimdall-flashable JAR file containing the UCLB3 firmware from here, or here, or here (Stock_SGH_I997_UCLB3_Repartition-One-Click.jar, 206.6 MB)
  3. Launch Heimdall.¬† The procedure for doing this will depend on your computer’s OS.¬† (For example, on Windows machines, you’d need to run heimdall-frontend.exe.)
  4. Turn off your phone.
  5. Press and hold down both the Volume Up and Volume Down buttons as you plug the phone into your PC via USB cable.  This will put your phone into download mode.
  6. If Heimdall successfully detects your phone, it will show “Connected” in the Device Status.¬† The Flash bar will also turn on, which means Heimdall is ready to flash firmware.
  7. Load Stock_SGH_I997_UCLB3_Repartition-One-Click.jar into the Load Package tab in Heimdall.
  8. Click on the Flash tab.
  9. Press the Start button in the Flash tab.
  10. Upon completion of the process, your phone will reboot automatically and the ATT logo will be displayed before booting into UCLB3.
  11. If the process fails, just put your device again into download mode. Then what you have to do is to flash the package again and this time check the “Flash Bootloader” box in Heimdall.

Congratulations!  You have successfully updated your AT&T Samsung Infuse 4G SGH-I997 to Android 2.3.6 Gingerbread firmware build UCLB3 via Odin3 or Heimdall Suite.

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