Owners of AT&T’s Samsung Infuse 4G SGH-I997 can definitely infuse their day with something great. A pre-rooted UCLB3 firmware is now available for the said phone. For those of you not in the know, this is the latest Android 2.3.6 Gingerbread for your phone and it comes bundled  not just with root access but also with ClockworkMod Recovery. You get both in just one flash.

A pre-rooted Android 2.3.6 Gingerbread firmware is not really as exciting if you are going to compare it to Ice Cream Sandwich, but still it’s a good start if you want to install custom kernels and ROMs on your device. The latest Android 2.3.6 Gingerbread firmware, UCLB3, can now be installed, pre-rooted, with ClockworkMod Recovery thanks to the effort of XDA Developers member jscott30. As far as bugs and issues are concerned, there weren’t any reported so this should work just fine on your AT&T Infuse 4G.

Disclaimer

• The instructions in this guide are intended for the AT&T Samsung Infuse 4G, model number SGH-I997. Applying these instructions on another device or model may produce undesired outcomes.
• The information in this guide is provided for instructional and educational purposes only. There is no guarantee that these instructions will work under your specific and unique circumstances.
• Use these instructions at your own risk. We shall not hold any responsibility or liability for whatever happens to you or your device arising from your use of the info in this guide.
• Read and understand the whole guide first before actually performing the instructions.

Requirements

• Samsung Infuse 4G SGH-I997
• A Windows PC
• WinRAR
• Enable USB debugging on your phone.  You can do this from Settings > Applications > Development.
• Backup all personal data on your phone to make sure you have a copy of your personal data (e.g., contacts, SMS, MMS, Internet settings, Wi-Fi passwords, and the like) in case the procedure in this guide erases such data.
• • For backup tips, check our guides on how to sync your data to the cloud and how to create local backups of your mobile data.
• Make sure that your battery has at least 50% charge to avoid interruption due to power loss.
• Uninstall Samsung KIES and any firewall or antivirus program if you have them installed on your computer as they may interrupt the flashing process.
• Install the proper drivers for your mobile device on your computer. 32-bit (x86) Windows | 64-bit (x64) Windows
• Download Odin3 1.7 (Odin3 v1.7.zip, 193 kB) to your computer.
• Download one of the following pre-rooted UCLB3 firmware packages:
  • I997UCLB3-root.rar (173 MB) –If you only want rooted stock kernel and stock recovery
  • I997UCLB3-root-deodex.rar (174 MB) — If you want rooted stock kernel, stock recovery, deodex, zipalign, and BusyBox
  • I997UCLB3-CWM-root-deodex.rar (174 MB) — If you want rooted stock kernel, ClockworkMod Recovery, deodex, zipalign, and BusyBox
  • I997UCLB3-CWM-root-deodex-extras.rar (168 MB) — This is the recommended package. Get this if you want a pre-rooted custom kernel (Entropy’s Daily Driver), Red ClockworkMod Recovery, deodex, zipalign, BusyBox, no bloatware, and a few extra goodies (e.g., fix for scrolling wallpaper, CRT off animation, 8 lock screens, extended power menu, and accurate battery mod).

Instructions

1. Using WinRAR or similar software, extract the RAR package that you downloaded.  Extract the archive into a folder on your computer, preferably the Desktop, where you can easily find the extracted file.  You should be getting one file with a *.tar.md5 extension.
2. Extract Odin3 v1.7.zip into a folder on your computer.
3. Turn off your phone and make sure that it is not connected to your computer.
4. Boot your Infuse 4G into recovery by holding down the Volume Up, Volume Down, and Power buttons at the same time.  When you see the Samsung logo, release the Power button. In recovery, use the Volume buttons to navigate and the Power button to select options.
5. Select the Wipe All User Data option. This won’t affect any files on your SD card. Confirm data wipe by selecting Yes on the next screen.
6. Select Wipe All Cache Data.
7. Select Reboot system now and allow your phone to reboot normally.
8. After the phone has completely booted, turn it off completely again.
9. On your computer, run Odin3 by double clicking on Odin3 v1.7.exe.
10. Click the PDA tab in Odin3 and select the *.tar.md5 file that you extracted from the RAR package.
11. Connect the USB cable to the computer.
12. While holding down the Volume Up and Volume Down buttons on your phone, plug the other end of the USB cable into your phone.  This will place the phone in Download Mode.  In Odin3,  you will see an “Added!” message, indicating that the device is recognized.  If you do not see this message, reinstall the device drivers or check that you enabled USB debugging.
13. Click START in Odin3 to start flashing the kernel. Wait for it to finish.
14. Once the flashing is done, your device will automatically reboot. You should get a “PASS” message on the Odin3 window, indicating that the flashing was successful.
15. However, if you get a “FAIL” message on the Odin3 window, disconnect the phone from the computer, close Odin3, remove your phone’s battery, re-insert the battery, start over from step 3.

Great! Your AT&T Samsung Infuse 4G SGH-I997 is now running on Android 2.3.6 Gingerbread firmware UCLB3 with root access. What’s even better is that you can now install custom kernels and ROMs on your AT&T Infuse 4G. Enjoy!