How To: Unroot the T-Mobile MyTouch 4G

I. Before You Begin

1. This is how to unroot your MyTouch 4G if you used our How To Temp Root then Perm Root procedures.

2. If you did the “true perm root/cid/radio s-off” procedure as well then do this but add the steps it says to add.

II. (THIS IS ONLY FOR PEOPLE WHO DID THE GFREE PROCEDURE, IF YOU DIDN’T SKIP TO SECTION III). Undo GFree

1. Copy your “part7backup-whatevernuberitscalled.bin” that was created when you originally did the GFree procedure to root to the root of your sdcard

2. Open a command prompt and navigate to your sdk tools folder

3. Type “adb push gfree /data/local” and hit enter

4. Open up terminal emulator or adb shell and type “su” press enter to get root privileges.

5. Type “cd /data/local” and hit enter

6. Now type “chmod 777 gfree” and hit enter to make the program executable

7. Type “cd /data/local” and hit enter.

8. Now type “./gfree” + enter to run gfree again. It will disable wp on the emmc and remove the brq filter in the kernel. (as well as make another backup, which you can delete if you wish)

9. Now run the “dd if=/sdcard/part7backup-whatevernumberitscalled.bin of=/dev/block/mmcblk0p7″ and it should show the output:

10. Run “sync” and then reboot.

Thanks to JJJackson56 from XDA for this section!

III.  Unroot

1. Download the PD15IMG file and save it to your computer.

PD15IMG

2. Plug your phone in via USB cable and copy the PD15IMG.zip file onto the root of your SD card (NOT in any folder, just on the sd card itself. Do NOT extract it, leave it as a .zip).

3. Turn off the phone and unplug it from the computer.

4. Turn the phone on by holding down Volume Down and Power until you get into bootloader mode.

5. It should automatically find the PD15IMG file on the sd card and ask you to procedure. Say yes and wait for it to update.

6. Once it is done, it’ll ask you to reboot. Say yes and wait for it to reboot. Once it does, your all set!

Thanks to Football @ XDA for the new PD15IMG file and procedure!
Thanks to Phateless @ XDA for sending this in!

  • Wullace

    Seriously… I need this file BAD, and the link is broken or the site is down or somehow, somewhere it just wont open that damn page…

    Is there another way to get this damn file???

    • http://Poetry.RLCassidy.com/ Richard Cassidy

      I just uploaded PD15IMG.zip to ge.tt for you http://ge.tt/9X721WA?c 

  • A Williams

    After having a very difficult time unrooting (ended up following several guides before getting results), my phone tells me it “does not appear to be rooted”, but my “S=OFF”. How do I change this back to “S=ON”? My phone is flashed back to factory, but something is not right. My Hboot is as follows:

    GLACIER PVT SHIP S-OFF
    HBOOT-0.86.0000
    MICROP-0429
    RADIO-26.03.02.26_M
    eMMc-boot
    Sep 27 2010, 11:12:59

  • Cataldi1122

    what i did is i used clockwork recovery to restore my stock rom. I then put this PD15IMG.zip file on the root worked perfect .what i noticed is if you go to bootloder screen it checks for that file automatically and will ask you to update again and again after you have already.can i remove this file once i used it or do i have to leave it on the sd

    • Cataldi1122

      I also want to add that i DID NOT use terminal emulator at all my S is now back on and everything is stock as far as i can tell

  • Mrbuddhasr

    everytime i go to the bootloader it will try to update but onces it gets to the part that says checking md5..it sits for about a minute…then it says main version is older update failed