Root and ClockworkMod Recovery for AT&T Skyrocket Ice Cream Sandwich Build, UCLF5


UCLF5 is the latest Android 4.0 Ice Cream Sandwich firmware leaked for the AT&T Galaxy S2 Skyrocket. If you have flashed it and would like to root and install ClockworkMod (CWM) recovery on it, the guide below will help you do just that, with step-by-step instructions. Rooting lets you access system files and apps that needs root access to work, while ClockworkMod recovery will let you flash any custom ROM or modification that you may wish to flash.

Read on to find out how you can root and install CWM recovery on UCLF5 firmware on AT&T Galaxy S2 Skyrocket.


This guide below is compatible only and only with the AT&T Samsung Galaxy S2 Skyrocket, model number i727. It’s not compatible with any other device and may render an incompatible device unusable. Check your device model in Settings » About phone.


The methods and procedures discussed here are considered risky and you should not attempt anything if you don’t know completely what it is. If any damage occurs to your device, we won’t be held liable.

How to Root and Install ClockworkMod Recovery on AT&T Skyrocket UCLF5 Firmware

Part I: Installing ClockworkMod Recovery

  1. Install the UCLF5 firmware on your phone by following the guide → here. Skip this step if you are already on the UCLF5 firmware.
  2. Download and install drivers for the phone on your computer. Skip this step if you already installed the drivers while following step 1.
    Download Drivers  |  Alternate Link 
  3. Download Odin 1.85 from → here.
    Filename: Odin | Size: 199 KB
  4. Extract the contents of the Odin file to a folder.
  5. Download the ClockworkMod recovery file.
    Download CWM Recovery  |  Filename: SkyrocketCWMrecovery.tar
  6. Open Odin — double-click the Odin3 v1.85.exe that you got after extracting the file Odin
  7. Now, boot into download mode on the phone. To do this, turn off your phone. Plug in your USB cable to the computer, but not to the phone. Then, holding the Volume Up and Volume Down buttons on the phone, plug in the USB cable to the phone while holding those buttons. Once the Download mode screen shows up (the screen will show the text Downloading), let go of the buttons.
  8. In ODIN, click on the PDA button, then select the SkyrocketCWMrecovery.tar file downloaded in step 5.
  9. Important! Do not make any other changes in Odin except selecting the required file as given in step 8. Leave all other options as they are.
  10. Now, hit the START button to start flashing ClockworkMod recovery. When the flashing is complete, your phone will automatically reboot — and when you see the Samsung logo, you can safely unplug the cable. Plus, you’ll get a PASS (with green background) message in the left-most box at the very top of the Odin. What to do if Odin gets stuck: If ODIN gets stuck and doesn’t seem to be doing anything, or you get a FAIL message (with red background) in ODIN, disconnect the phone from the PC, close ODIN, remove battery, re-insert it, then do the procedure again from step 6.

Part II: Rooting UCLF5

  1. Download the root file.
    Download Root  |  Filename:
  2. Copy the to the internal SD card on the phone. Do not extract it.
  3. Turn off the phone, then boot into CWM recovery. For this, press and hold these 3 buttons together until Samsung’s screen shows up: Volume UP + Volume Down + Power. Phone will boot into CWM recovery in a few seconds.
    In recovery, use volume keys to scroll up and down between options and power/home key to select an option.
  4. Select install zip from sdcard, then select choose zip from sdcard. Scroll to the file on the SD card and select it. Confirm installation by selecting Yes – Install on the next screen.
  5. The file may fail to install the first time. If that happens, simply repeat step 4 till the file gets installed.
  6. After installation is complete, select Go back then select reboot system now to reboot the phone.

Your phone is now rooted, and also has ClockworkMod recovery installed on the UCLF5 firmware. Let us know how it all works for you, in the comments below.

9 Comment

  1. Augusto Delacruz says: Reply

    Worked great, the installation was fast and clean, will star using it to see how it goes, thanks

  2. scmagee says: Reply

    I loaded ICS UCLF5, then loaded
    SkyrocketCWMrecovery.tar. I shutdown my SR and restarted it and it worked fine. I did not root it (yet). Next I booted into CWM and did a backup of the new UCLF5 load. Then I restored a Ginger bread image I saved earlier. When I did a restore back to ICS, and I attempt to do a shutdown, it works to the final “vibration” but power is never shut off. Any ideas how to fix this one? Thanks 🙂

    1. scmagee says: Reply

      We I figured it out. I upgraded to CWM recovery touch and now the restore works correctly.

  3. Vish says: Reply

    Worked great for me! just a word of advice when trying to boot in to CWM recovery – Make sure you release the three buttons right when you see the samsung logo, otherwise it will get confused and boot normally.

    Also – tried to star this, but for some reason it’s going negative!

    1. vish says: Reply

      Also – the link for the root file is broken in this article. I used the link in

  4. Elie Ortiz Pereles says: Reply

    I did it. and works great only problem is that now my phone wont turn off or restart.

  5. Vegetarianwino says: Reply

    The camera will not work

    1. Vegetarianwino says: Reply

      Oops I thought that this was the forum on Skyrocket and the leaked Jelly Bream ROM. On this ICS everything works. Avoid the leaked “Darkside” Jelly Bean ROM. The camera won’t work after installation

  6. vGingaNinjav says: Reply

    installed as directed and upon reboot, device no longer responds. no boot, no cwm boot, no download, boot, no charging. it’s like a paper weight now. any idea how to fix this?

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