How to Unroot Samsung Galaxy S2 / S II T989 T-Mobile Phone To Ice Cream Sandwich! [Windows]


Need to send your phone back to T-Mobile? Don't want to void the warranty by sending them a rooted phone? Or just want a cleaned up phone? This guide will show you the step by step direction on how to unroot your phone so that T-Mobile will never find out that you ever rooted your phone or so you can get a fresh phone. This guide will consist of a visual guide and a written guide. Enjoy! 

This will delete EVERYTHING on your internal memory card. NOT external SD card!

1. Download / Install Samsung Kies if you don't already have it: Here

2. Plug in your phone to your computer via microUSB

3. Enter into "Download Mode". Hold down the volume up, volume down, and power button all at the same time. When you feel vibration let go of the power button, but keep holding on to the volume up and down button.

4. When you see a yellow warning triangle you can let go of all the buttons and press the volume up button to continue into "Download Mode"

5. Download the needed files
-->
Download SGH-T989_UVLE1_ICS.zip -->

6. Open Odin3 V. 1.85.exe 

7. Make sure nothing but reboot is check marked

8. Click on PDA and find and select the file named: T989UVLE1_T989TMBLE1_T989UVLE1_HOME.tar.md5

9. Click start and wait until your phone reboots

10. Congratulations! You should be on official Ice Cream Sandwich

11. If you get any errors or force closes you need to enter into "Stock Recovery"

12. Unplug your microUSB cable from your phone. Hold down the volume up, volume down, and power button all at the same time. When you feel a vibration let go of the power button but keep holding on to the volume up and down button.

13. When you entered into stock recovery choose "Wipe data/factory reset" by navigating up and down with the volume buttons and the power button to select an item.

13. Go down and choose "Yes"

14. Reboot and you will be a fresh Ice Cream Sandwich. Enjoy. 
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