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Unrooting Guide for the Evo 4G LTE

Discussion in 'Android Devices' started by ocnbrze, Dec 31, 2012.

  1. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!
    Thread Starter

    Unrooting Your Evo 4G LTE

    Ok so you want to unroot your phone. If it is to take your phone in to get it serviced from Sprint, then let me start by saying that Sprint has changed their policy on rooted phones. It is something that they have not really advertised nor will they mention it. As long as your issue is not software related caused by rooting or flashing errors and it is hardware related then you should be fine.

    Here is a story from a developer who put the new policy to the test:
    Sprint Policy Put to the Test

    Before proceeding i must give credit where credit is due: so thanx goes to Regaw, viperboy, and captain throwback. You guys rock and do amazing things.

    I nor AF are NOT responsible for you blowing your phone up. I am just a guide showing you the way. If you stray from the path, that is not my fault. Only you can prevent forest fires;)

    I will go into detail on how to get your phone setup so that it can be serviced without any issues including how to unroot the phone if that is what you wish.

    so here is what you can do:
    1. Flash a stock rom
    2. Re-locking and running a RUU
    3. RegawMOD Bootloader Customizer
    4. Unroot using RegawMOD S-ON Writer Utility

    1. Flashing a Stock(rooted) Rom[S-ON/S-OFF ONLY]
    Ok so the easiest way to take your phone in is to flash the stock rooted rom. This will not remove the watermark, however.

    Here is what you do:
    1. You will need to download this rom:[ROM][OFFICIAL][12/18]Stock Rooted 3.15.651.16 Odex/Deodex.
    2. Next transfer the file over to the sd card.
    3. Make a nandroid backup
    4. Wipe dalvik cache, cache, factory reset, and system
    5. Flash the rom

    If you have not flashed a rom before then please go here:http://androidforums.com/evo-4g-lte...ide-lazypanda-racun-unlocked.html#post4851453. Skip to the second post for more details on how to flash a rom.
    2. Re-locking and Running a RUU[S-ON ONLY]
    Ok not sure if you want to do this or not as it will not hide the watermark, when you do this. This method will re-lock the bootloader. However, it will say at the top of the bootloader "re-locked" and that is a dead giveaway that it was rooted at one point(again, not that it matters to Sprint).

    Anyways if you want to continue on then here is what you will need to do:
    First off let me explain on what a ruu is. RUU stands for rom update utility. It is how we can update the phone and is similar to taking an OTA. They can be found in two forms a PJ75IMG file or in a ruu.exe file. Both files will need a locked or re-locked bootloader in order for it to work.

    Also since these files update the phone, you have to make sure that you use the right file or you will get the "hboot version is older"(something to that effect). You can go here: AndroidFiles RUU find your radio version and download it.

    OK ready?
    Re-locking the Bootloader
    You will need to use the same folder that you used to unlock the bootloader. But if you do not have the files anymore you can download these files and put it in a folder(i call it android, but you can name it whatever you want):

    1. On the phone boot it into the bootloader and then select fastboot
    2. On you pc open the command window from the folder
    3. Enter this command:
    Code (Text):
    1. fastboot oem relock
    4. Proceed to running the ruu, if your bootloader says "re-locked"

    Running the RUU
    1. Download the correct RUU file that matches your radio
    2. Connect your phone to the pc via USB cable
    3. On your phone, make sure that you have:
    • HTC Sync installed
    • USB debugging turned on
    • Set the phone to charge only
    3. Run the RUU.exe file and it should do the work for you.

    Check to see if you have a stock rom, if so then congrats!!!!!
    3. RegawMOD Bootloader Customizer[S-OFF ONLY]
    This utility will give you the ability to change the watermark on your bootloader to whatever you want it to be. Meaning instead of unlocked you can make it so it says locked. This will also remove the watermark that is also found in the splashscreen.

    Here is the original thread: [UTILITY | S-OFF] RegawMOD Bootloader Customizer 3.1.1 | Updated 07.04.12

    You should be on a stock rom, however, as this will not change anything but how the bootloader will look. This will not affect your root status.
    4. Unroot W/RegawMOD S-ON Writer Utility[S-OFF ONLY]
    If you have s-off and want to change it back to s-on then this will now work with the latest hboots now.

    here is the original thread:
    [GUIDE] S-ON After LazyPanda/DirtyRacun S-OFF | Back to Completely Stock

    Rather then go into specifics on how to do this, i will go into the basics. For more details, please go to regaw's thread.

    RegawMOD S-ON Writer Utility is basically two steps after you get everything setup as described in the guide:
    1. Run a ruu or PJ75IMG file to get you back to stock
    2. Run the RegawMOD S-ON Writer Utility

    now the ruu and PJ75IMG files are older you will need to use these files:

    1. For all of the current ruu's go to Unlimited.IO. the latest ruu's are listed there.
    2. For PJ75IMG ruu:PJ75IMG_Jewel_firmware_2.13.651.1. This will not work with the latest hboot.

    After you run the ruu make sure that you have usb debugging turned on. All you will need to do next is run the RegawMOD S-ON Writer Utility .exe file and follow directions.

    Again i just want to re-iterate that most places do not care about being rooted, especially if it is hardware related. If the issue was because of a bad flash then you are on your own.

    So rest assured the above methods will be adequate enough to take your phone in with no issues. Which one? That will be up to you.

    Now go forth and get your unroot on:D

  2. Mikestony

    Mikestony ~30% Carbon Black ±

    Nice write up buddy! I really like Sprints policy! No worries about unrooting to bring it in.
    But what about HTC? Warranty void if rooted?
    ocnbrze likes this.
  3. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!
    Thread Starter

    yep of couse as with anything rooted, rooting will void your warranty.
  4. windsorclarenc

    windsorclarenc Android Enthusiast

    Yeah, but any time I've needed to make use of that warranty they couldn't possibly know it was rooted because it wasn't functional.
  5. EarlyMon

    EarlyMon The PearlyMon
    VIP Member

    Sprint has had that policy in place since 2011, announced to TEP holders. (as I recall)

    Nice write up! :)

    PS - possible typo there about bad flashing, could be read as us endorsing fraud, which we don't.
    ocnbrze likes this.
  6. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!
    Thread Starter

    Granite1 and EarlyMon like this.
  7. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!
    Thread Starter

    i'm gonna sticky this for now.

    feel free to move it around if you guys think otherwise.
    Granite1 and EarlyMon like this.
  8. kamando04

    kamando04 Lurker

    So I followed all steps perfectly, and my phone will not reboot out of bootloader - It is now relocked and I have the RUU installed - what am I missing here?
  9. Granite1

    Granite1 Zercron Encrusted Tweezer

    You flashed the RUU correct?

    If the phone won't boot out of the bootloader my assumption would be there isn't a Rom loaded in the system partition, hence the no boot.

    I'd try and flash the RUU again and see if it sticks.
    ocnbrze likes this.
  10. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!
    Thread Starter

    what is your hboot and baseband? did you get an error when you ran the ruu?
    Granite1 likes this.
  11. m6284505

    m6284505 Well-Known Member

    Does anyone have a good link to the HBoot 2.09 RUU? I have tried to download the one from u.io (http://unlimited.io/downloads/dirtyracun/jewel/209/RUU.zip) 6 times and they all fail. I do not know how to check/compare MD5 (what app to use?) but if I open the zip files it gives me an error and nothing is inside the zip.

    Attached Files:

  12. windsorclarenc

    windsorclarenc Android Enthusiast

    If there is nothing in the zip then you definitely got a bad download. Make sure you're downloading using wifi. And a computer is always preferable when downloading big files like a RUU.
  13. m6284505

    m6284505 Well-Known Member

    I am, all 8 I have tried have been from my computer. :/
  14. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!
    Thread Starter

    hey guys,
    so i just added a ruu option to "sort of" unroot the phone.

    basically you re-lock the bootloader and then run the ruu.

    check it out for the info.
    dustwun77 likes this.
  15. dschlemmer318

    dschlemmer318 Newbie

    bootloader will not relock and says tampered at the top. any attempt to flash a rom just reboots the phone and now im left with not rom at all and i can not find the nandroid backup anywhere
  16. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!
    Thread Starter

    what is your hboot? what were you trying to do? just relock the phone? what did you do prior to re-locking? do you have a custom recovery still? why are you trying to unroot?

    the more info we have the better we can help;)
  17. dschlemmer318

    dschlemmer318 Newbie

    hboot 2.09. was trying to flash stock rooted rom flash failed and i have no nandroid. ruu fails and relocking bootloader fails
  18. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!
    Thread Starter

    not sure what you mean flashed failed. did you wipe dalvik cache, cache, data(factory reset), and system before you flashed the rom? and for future reference always make a nandroid backup before you flash anything.
  19. dschlemmer318

    dschlemmer318 Newbie

    yes i wiped all that. i had a back up on my computer but now its gone. it started flashing the rom then before it finishes phone reboots
  20. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!
    Thread Starter

    what rom was it? do you have a link? try re-downloading the rom again and re-flash it.
  21. dschlemmer318

    dschlemmer318 Newbie

    it was the ruu.zip and one other stock rooted zip and neither one worked tried like 10 times
  22. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!
    Thread Starter

    ok the ruu is not flashed thru recovery it is done thru the bootloader. but it needs to match with what radio(baseband) you have. earier versions will not work......so it depends on your radio to run the ruu.

    and have you tried this one?
    Dev-Host - The Ultimate Free File Hosting / File Sharing Service
    either one will work, but i usually recommend the odexed version.

    also try and wipe dalvik cache, cache, data, and system three times before flashing it.
    Granite1 likes this.
  23. Granite1

    Granite1 Zercron Encrusted Tweezer

    Going to unroot the hosed phone today at some point. I'm going to do the Regaw S-on utility method, downloading the 2.09 RUU now.

    Hopefully I don't run into any issues.
    ocnbrze likes this.
  24. Granite1

    Granite1 Zercron Encrusted Tweezer

    Ok, finally got an RUU to run. Took a little while to figure it out.

    Seems we don't have an official RUU for the latest OTA. If someone is on the latest radios with S-on, an RUU doesn't seem possible right now. Maybe I'm missing something, I don't know.

    I had to downgrade my radios to the last firmware set and then run the last RUU to get it to work.

    I'm going to try the regaw S-on utility hopefully tonight. I hope it works.

    Now I'll be able to do the latest OTA and it'll be completely stock updated unrooted. :)
    ocnbrze and Rxpert83 like this.
  25. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!
    Thread Starter

    ohhhhhh you're such a smart man granite. good call. i might need to add that into the guide somewhere at some point.
    Granite1 likes this.


The HTC EVO 4G LTE release date was May 2012. Features and Specs include a 4.7" inch screen, 8MP camera, 1GB RAM, Snapdragon S4 Plus processor, and 2000mAh battery.

May 2012
Release Date

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